Home / 28,487,605.44-39,298,561.92-18,696,691.20

Finding the Fourth Proportional to 28,487,605.44, 39,298,561.92 and 18,696,691.20

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Solution

The fourth proportional to 28,487,605.44, 39,298,561.92 and 18,696,691.20 is: 25,792,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487,605.44 : 39,298,561.92 = 18,696,691.20 : x
  2. Step 2: Convert to fraction form
    28,487,605.44/39,298,561.92 = 18,696,691.20/x
  3. Step 3: Cross multiply
    28,487,605.44x = 39,298,561.92 × 18,696,691.20
  4. Step 4: Simplify right side
    28,487,605.44x = 734,753,076,822,319.12
  5. Step 5: Solve for x
    x = 734,753,076,822,319.12/28,487,605.44
  6. Step 6: Final answer
    x = 25,792,026.58

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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.