Home / 31,910,387.40-47,874,134.70-12,754,600.20

Finding the Fourth Proportional to 31,910,387.40, 47,874,134.70 and 12,754,600.20

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Solution

The fourth proportional to 31,910,387.40, 47,874,134.70 and 12,754,600.20 is: 19,135,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910,387.40 : 47,874,134.70 = 12,754,600.20 : x
  2. Step 2: Convert to fraction form
    31,910,387.40/47,874,134.70 = 12,754,600.20/x
  3. Step 3: Cross multiply
    31,910,387.40x = 47,874,134.70 × 12,754,600.20
  4. Step 4: Simplify right side
    31,910,387.40x = 610,615,448,019,447
  5. Step 5: Solve for x
    x = 610,615,448,019,447/31,910,387.40
  6. Step 6: Final answer
    x = 19,135,319.18

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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.