Home / 28,169,404.76-42,269,807.10-15,215,294

Finding the Fourth Proportional to 28,169,404.76, 42,269,807.10 and 15,215,294

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Solution

The fourth proportional to 28,169,404.76, 42,269,807.10 and 15,215,294 is: 22,831,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,404.76 : 42,269,807.10 = 15,215,294 : x
  2. Step 2: Convert to fraction form
    28,169,404.76/42,269,807.10 = 15,215,294/x
  3. Step 3: Cross multiply
    28,169,404.76x = 42,269,807.10 × 15,215,294
  4. Step 4: Simplify right side
    28,169,404.76x = 643,147,542,349,787.38
  5. Step 5: Solve for x
    x = 643,147,542,349,787.38/28,169,404.76
  6. Step 6: Final answer
    x = 22,831,421.10

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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.