Home / 19,381,966.40-29,072,949.60-13,335,348.80

Finding the Fourth Proportional to 19,381,966.40, 29,072,949.60 and 13,335,348.80

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Solution

The fourth proportional to 19,381,966.40, 29,072,949.60 and 13,335,348.80 is: 20,003,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381,966.40 : 29,072,949.60 = 13,335,348.80 : x
  2. Step 2: Convert to fraction form
    19,381,966.40/29,072,949.60 = 13,335,348.80/x
  3. Step 3: Cross multiply
    19,381,966.40x = 29,072,949.60 × 13,335,348.80
  4. Step 4: Simplify right side
    19,381,966.40x = 387,697,923,560,820.50
  5. Step 5: Solve for x
    x = 387,697,923,560,820.50/19,381,966.40
  6. Step 6: Final answer
    x = 20,003,023.20

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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.