Home / 129,154,152.24-178,227,596.32-76,247,901.92

Finding the Fourth Proportional to 129,154,152.24, 178,227,596.32 and 76,247,901.92

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Solution

The fourth proportional to 129,154,152.24, 178,227,596.32 and 76,247,901.92 is: 105,219,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,154,152.24 : 178,227,596.32 = 76,247,901.92 : x
  2. Step 2: Convert to fraction form
    129,154,152.24/178,227,596.32 = 76,247,901.92/x
  3. Step 3: Cross multiply
    129,154,152.24x = 178,227,596.32 × 76,247,901.92
  4. Step 4: Simplify right side
    129,154,152.24x = 13,589,480,283,644,712
  5. Step 5: Solve for x
    x = 13,589,480,283,644,712/129,154,152.24
  6. Step 6: Final answer
    x = 105,219,073.86

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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.