Home / 21,059,378.16-29,072,044.44-13,328,167.92

Finding the Fourth Proportional to 21,059,378.16, 29,072,044.44 and 13,328,167.92

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Solution

The fourth proportional to 21,059,378.16, 29,072,044.44 and 13,328,167.92 is: 18,399,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059,378.16 : 29,072,044.44 = 13,328,167.92 : x
  2. Step 2: Convert to fraction form
    21,059,378.16/29,072,044.44 = 13,328,167.92/x
  3. Step 3: Cross multiply
    21,059,378.16x = 29,072,044.44 × 13,328,167.92
  4. Step 4: Simplify right side
    21,059,378.16x = 387,477,090,074,022.38
  5. Step 5: Solve for x
    x = 387,477,090,074,022.38/21,059,378.16
  6. Step 6: Final answer
    x = 18,399,265.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.