Home / 28,699,951.44-39,605,905.10-15,647,206.92

Finding the Fourth Proportional to 28,699,951.44, 39,605,905.10 and 15,647,206.92

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Solution

The fourth proportional to 28,699,951.44, 39,605,905.10 and 15,647,206.92 is: 21,593,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699,951.44 : 39,605,905.10 = 15,647,206.92 : x
  2. Step 2: Convert to fraction form
    28,699,951.44/39,605,905.10 = 15,647,206.92/x
  3. Step 3: Cross multiply
    28,699,951.44x = 39,605,905.10 × 15,647,206.92
  4. Step 4: Simplify right side
    28,699,951.44x = 619,721,792,353,583.25
  5. Step 5: Solve for x
    x = 619,721,792,353,583.25/28,699,951.44
  6. Step 6: Final answer
    x = 21,593,130.35

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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.