Home / 157,286,238.48-217,062,358.20-87,672,123.36

Finding the Fourth Proportional to 157,286,238.48, 217,062,358.20 and 87,672,123.36

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Solution

The fourth proportional to 157,286,238.48, 217,062,358.20 and 87,672,123.36 is: 120,991,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,286,238.48 : 217,062,358.20 = 87,672,123.36 : x
  2. Step 2: Convert to fraction form
    157,286,238.48/217,062,358.20 = 87,672,123.36/x
  3. Step 3: Cross multiply
    157,286,238.48x = 217,062,358.20 × 87,672,123.36
  4. Step 4: Simplify right side
    157,286,238.48x = 19,030,317,844,922,908
  5. Step 5: Solve for x
    x = 19,030,317,844,922,908/157,286,238.48
  6. Step 6: Final answer
    x = 120,991,626.66

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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.