Home / 644,972,406.60-967,458,609.90-353,726,992.20

Finding the Fourth Proportional to 644,972,406.60, 967,458,609.90 and 353,726,992.20

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Solution

The fourth proportional to 644,972,406.60, 967,458,609.90 and 353,726,992.20 is: 530,590,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,972,406.60 : 967,458,609.90 = 353,726,992.20 : x
  2. Step 2: Convert to fraction form
    644,972,406.60/967,458,609.90 = 353,726,992.20/x
  3. Step 3: Cross multiply
    644,972,406.60x = 967,458,609.90 × 353,726,992.20
  4. Step 4: Simplify right side
    644,972,406.60x = 342,216,224,157,920,128
  5. Step 5: Solve for x
    x = 342,216,224,157,920,128/644,972,406.60
  6. Step 6: Final answer
    x = 530,590,488.30

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Double scale
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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.