Home / 247,128,220.74-370,680,351.12-91,712,327.10

Finding the Fourth Proportional to 247,128,220.74, 370,680,351.12 and 91,712,327.10

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Solution

The fourth proportional to 247,128,220.74, 370,680,351.12 and 91,712,327.10 is: 137,564,044.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,128,220.74 : 370,680,351.12 = 91,712,327.10 : x
  2. Step 2: Convert to fraction form
    247,128,220.74/370,680,351.12 = 91,712,327.10/x
  3. Step 3: Cross multiply
    247,128,220.74x = 370,680,351.12 × 91,712,327.10
  4. Step 4: Simplify right side
    247,128,220.74x = 33,995,957,611,460,288
  5. Step 5: Solve for x
    x = 33,995,957,611,460,288/247,128,220.74
  6. Step 6: Final answer
    x = 137,564,044.73

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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.