Home / 117,042,325.64-161,518,423.38-64,834,742.78

Finding the Fourth Proportional to 117,042,325.64, 161,518,423.38 and 64,834,742.78

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Solution

The fourth proportional to 117,042,325.64, 161,518,423.38 and 64,834,742.78 is: 89,471,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,042,325.64 : 161,518,423.38 = 64,834,742.78 : x
  2. Step 2: Convert to fraction form
    117,042,325.64/161,518,423.38 = 64,834,742.78/x
  3. Step 3: Cross multiply
    117,042,325.64x = 161,518,423.38 × 64,834,742.78
  4. Step 4: Simplify right side
    117,042,325.64x = 10,472,005,434,073,438
  5. Step 5: Solve for x
    x = 10,472,005,434,073,438/117,042,325.64
  6. Step 6: Final answer
    x = 89,471,952.79

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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.