Home / 42,012,132.30-63,018,198.45-10,099,428.30

Finding the Fourth Proportional to 42,012,132.30, 63,018,198.45 and 10,099,428.30

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Solution

The fourth proportional to 42,012,132.30, 63,018,198.45 and 10,099,428.30 is: 15,149,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,012,132.30 : 63,018,198.45 = 10,099,428.30 : x
  2. Step 2: Convert to fraction form
    42,012,132.30/63,018,198.45 = 10,099,428.30/x
  3. Step 3: Cross multiply
    42,012,132.30x = 63,018,198.45 × 10,099,428.30
  4. Step 4: Simplify right side
    42,012,132.30x = 636,447,776,840,946.25
  5. Step 5: Solve for x
    x = 636,447,776,840,946.25/42,012,132.30
  6. Step 6: Final answer
    x = 15,149,142.45

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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.