Home / 157,005,248.76-216,667,253.70-87,389,135.64

Finding the Fourth Proportional to 157,005,248.76, 216,667,253.70 and 87,389,135.64

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Solution

The fourth proportional to 157,005,248.76, 216,667,253.70 and 87,389,135.64 is: 120,597,012.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,005,248.76 : 216,667,253.70 = 87,389,135.64 : x
  2. Step 2: Convert to fraction form
    157,005,248.76/216,667,253.70 = 87,389,135.64/x
  3. Step 3: Cross multiply
    157,005,248.76x = 216,667,253.70 × 87,389,135.64
  4. Step 4: Simplify right side
    157,005,248.76x = 18,934,364,022,335,592
  5. Step 5: Solve for x
    x = 18,934,364,022,335,592/157,005,248.76
  6. Step 6: Final answer
    x = 120,597,012.98

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1.5x scale

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.