Home / 109,726,464.79-151,276,037.85-87,169,680.91

Finding the Fourth Proportional to 109,726,464.79, 151,276,037.85 and 87,169,680.91

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Solution

The fourth proportional to 109,726,464.79, 151,276,037.85 and 87,169,680.91 is: 120,177,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726,464.79 : 151,276,037.85 = 87,169,680.91 : x
  2. Step 2: Convert to fraction form
    109,726,464.79/151,276,037.85 = 87,169,680.91/x
  3. Step 3: Cross multiply
    109,726,464.79x = 151,276,037.85 × 87,169,680.91
  4. Step 4: Simplify right side
    109,726,464.79x = 13,186,683,948,456,026
  5. Step 5: Solve for x
    x = 13,186,683,948,456,026/109,726,464.79
  6. Step 6: Final answer
    x = 120,177,789.14

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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.