Home / 28,798,839.82-39,742,402.71-15,746,107.78

Finding the Fourth Proportional to 28,798,839.82, 39,742,402.71 and 15,746,107.78

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Solution

The fourth proportional to 28,798,839.82, 39,742,402.71 and 15,746,107.78 is: 21,729,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798,839.82 : 39,742,402.71 = 15,746,107.78 : x
  2. Step 2: Convert to fraction form
    28,798,839.82/39,742,402.71 = 15,746,107.78/x
  3. Step 3: Cross multiply
    28,798,839.82x = 39,742,402.71 × 15,746,107.78
  4. Step 4: Simplify right side
    28,798,839.82x = 625,788,156,507,824.12
  5. Step 5: Solve for x
    x = 625,788,156,507,824.12/28,798,839.82
  6. Step 6: Final answer
    x = 21,729,630.79

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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.