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Finding the Fourth Proportional to 28,404,402.40, 42,606,603.60 and 17,633,864.80

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Solution

The fourth proportional to 28,404,402.40, 42,606,603.60 and 17,633,864.80 is: 26,450,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404,402.40 : 42,606,603.60 = 17,633,864.80 : x
  2. Step 2: Convert to fraction form
    28,404,402.40/42,606,603.60 = 17,633,864.80/x
  3. Step 3: Cross multiply
    28,404,402.40x = 42,606,603.60 × 17,633,864.80
  4. Step 4: Simplify right side
    28,404,402.40x = 751,319,087,469,593.38
  5. Step 5: Solve for x
    x = 751,319,087,469,593.38/28,404,402.40
  6. Step 6: Final answer
    x = 26,450,797.20

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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.