Home / 19,381,963.40-29,072,945.10-13,335,345.80

Finding the Fourth Proportional to 19,381,963.40, 29,072,945.10 and 13,335,345.80

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Solution

The fourth proportional to 19,381,963.40, 29,072,945.10 and 13,335,345.80 is: 20,003,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381,963.40 : 29,072,945.10 = 13,335,345.80 : x
  2. Step 2: Convert to fraction form
    19,381,963.40/29,072,945.10 = 13,335,345.80/x
  3. Step 3: Cross multiply
    19,381,963.40x = 29,072,945.10 × 13,335,345.80
  4. Step 4: Simplify right side
    19,381,963.40x = 387,697,776,332,915.62
  5. Step 5: Solve for x
    x = 387,697,776,332,915.62/19,381,963.40
  6. Step 6: Final answer
    x = 20,003,018.70

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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.