Home / 128,121,707.79-192,215,333.85-37,245,296.79

Finding the Fourth Proportional to 128,121,707.79, 192,215,333.85 and 37,245,296.79

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Solution

The fourth proportional to 128,121,707.79, 192,215,333.85 and 37,245,296.79 is: 55,877,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,121,707.79 : 192,215,333.85 = 37,245,296.79 : x
  2. Step 2: Convert to fraction form
    128,121,707.79/192,215,333.85 = 37,245,296.79/x
  3. Step 3: Cross multiply
    128,121,707.79x = 192,215,333.85 × 37,245,296.79
  4. Step 4: Simplify right side
    128,121,707.79x = 7,159,117,156,832,183
  5. Step 5: Solve for x
    x = 7,159,117,156,832,183/128,121,707.79
  6. Step 6: Final answer
    x = 55,877,472.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.