Home / 42,638,691-63,958,047.40-11,937,793.34

Finding the Fourth Proportional to 42,638,691, 63,958,047.40 and 11,937,793.34

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Solution

The fourth proportional to 42,638,691, 63,958,047.40 and 11,937,793.34 is: 17,906,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,638,691 : 63,958,047.40 = 11,937,793.34 : x
  2. Step 2: Convert to fraction form
    42,638,691/63,958,047.40 = 11,937,793.34/x
  3. Step 3: Cross multiply
    42,638,691x = 63,958,047.40 × 11,937,793.34
  4. Step 4: Simplify right side
    42,638,691x = 763,517,952,291,124.25
  5. Step 5: Solve for x
    x = 763,517,952,291,124.25/42,638,691
  6. Step 6: Final answer
    x = 17,906,693.06

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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.