Home / 21,104,681.28-29,101,332.49-13,748,873.55

Finding the Fourth Proportional to 21,104,681.28, 29,101,332.49 and 13,748,873.55

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Solution

The fourth proportional to 21,104,681.28, 29,101,332.49 and 13,748,873.55 is: 18,958,378.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104,681.28 : 29,101,332.49 = 13,748,873.55 : x
  2. Step 2: Convert to fraction form
    21,104,681.28/29,101,332.49 = 13,748,873.55/x
  3. Step 3: Cross multiply
    21,104,681.28x = 29,101,332.49 × 13,748,873.55
  4. Step 4: Simplify right side
    21,104,681.28x = 400,110,540,541,516.62
  5. Step 5: Solve for x
    x = 400,110,540,541,516.62/21,104,681.28
  6. Step 6: Final answer
    x = 18,958,378.72

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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.