Home / 1,122,912,012.80-1,684,368,019.20-945,544,563.20

Finding the Fourth Proportional to 1,122,912,012.80, 1,684,368,019.20 and 945,544,563.20

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Solution

The fourth proportional to 1,122,912,012.80, 1,684,368,019.20 and 945,544,563.20 is: 1,418,316,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,912,012.80 : 1,684,368,019.20 = 945,544,563.20 : x
  2. Step 2: Convert to fraction form
    1,122,912,012.80/1,684,368,019.20 = 945,544,563.20/x
  3. Step 3: Cross multiply
    1,122,912,012.80x = 1,684,368,019.20 × 945,544,563.20
  4. Step 4: Simplify right side
    1,122,912,012.80x = 1,592,645,022,982,513,408
  5. Step 5: Solve for x
    x = 1,592,645,022,982,513,408/1,122,912,012.80
  6. Step 6: Final answer
    x = 1,418,316,844.80

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Double scale
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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.