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Finding the Fourth Proportional to 15,708,978.70, 23,563,468.05 and 8,150,706.70

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Solution

The fourth proportional to 15,708,978.70, 23,563,468.05 and 8,150,706.70 is: 12,226,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708,978.70 : 23,563,468.05 = 8,150,706.70 : x
  2. Step 2: Convert to fraction form
    15,708,978.70/23,563,468.05 = 8,150,706.70/x
  3. Step 3: Cross multiply
    15,708,978.70x = 23,563,468.05 × 8,150,706.70
  4. Step 4: Simplify right side
    15,708,978.70x = 192,058,916,910,370.94
  5. Step 5: Solve for x
    x = 192,058,916,910,370.94/15,708,978.70
  6. Step 6: Final answer
    x = 12,226,060.05

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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.