Home / 90,110,234.43-134,944,898.40-81,376,234.88

Finding the Fourth Proportional to 90,110,234.43, 134,944,898.40 and 81,376,234.88

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Solution

The fourth proportional to 90,110,234.43, 134,944,898.40 and 81,376,234.88 is: 121,865,266.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,110,234.43 : 134,944,898.40 = 81,376,234.88 : x
  2. Step 2: Convert to fraction form
    90,110,234.43/134,944,898.40 = 81,376,234.88/x
  3. Step 3: Cross multiply
    90,110,234.43x = 134,944,898.40 × 81,376,234.88
  4. Step 4: Simplify right side
    90,110,234.43x = 10,981,307,747,381,412
  5. Step 5: Solve for x
    x = 10,981,307,747,381,412/90,110,234.43
  6. Step 6: Final answer
    x = 121,865,266.66

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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.