Home / 42,121,857.72-63,182,787.30-10,209,153.72

Finding the Fourth Proportional to 42,121,857.72, 63,182,787.30 and 10,209,153.72

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Solution

The fourth proportional to 42,121,857.72, 63,182,787.30 and 10,209,153.72 is: 15,313,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121,857.72 : 63,182,787.30 = 10,209,153.72 : x
  2. Step 2: Convert to fraction form
    42,121,857.72/63,182,787.30 = 10,209,153.72/x
  3. Step 3: Cross multiply
    42,121,857.72x = 63,182,787.30 × 10,209,153.72
  4. Step 4: Simplify right side
    42,121,857.72x = 645,042,788,003,763.75
  5. Step 5: Solve for x
    x = 645,042,788,003,763.75/42,121,857.72
  6. Step 6: Final answer
    x = 15,313,730.75

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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.