Home / 1,311,773,902.20-1,967,660,853.30-342,425,518.20

Finding the Fourth Proportional to 1,311,773,902.20, 1,967,660,853.30 and 342,425,518.20

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Solution

The fourth proportional to 1,311,773,902.20, 1,967,660,853.30 and 342,425,518.20 is: 513,638,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,773,902.20 : 1,967,660,853.30 = 342,425,518.20 : x
  2. Step 2: Convert to fraction form
    1,311,773,902.20/1,967,660,853.30 = 342,425,518.20/x
  3. Step 3: Cross multiply
    1,311,773,902.20x = 1,967,660,853.30 × 342,425,518.20
  4. Step 4: Simplify right side
    1,311,773,902.20x = 673,777,287,333,106,688
  5. Step 5: Solve for x
    x = 673,777,287,333,106,688/1,311,773,902.20
  6. Step 6: Final answer
    x = 513,638,277.30

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Half scale
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Double scale
Find fourth proportional to 1,311,773,903.20, 1,967,660,854.80 and 342,425,519.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.