Home / 423,700,755.23-635,553,162.65-128,598,438.53

Finding the Fourth Proportional to 423,700,755.23, 635,553,162.65 and 128,598,438.53

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Solution

The fourth proportional to 423,700,755.23, 635,553,162.65 and 128,598,438.53 is: 192,898,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,700,755.23 : 635,553,162.65 = 128,598,438.53 : x
  2. Step 2: Convert to fraction form
    423,700,755.23/635,553,162.65 = 128,598,438.53/x
  3. Step 3: Cross multiply
    423,700,755.23x = 635,553,162.65 × 128,598,438.53
  4. Step 4: Simplify right side
    423,700,755.23x = 81,731,144,319,593,120
  5. Step 5: Solve for x
    x = 81,731,144,319,593,120/423,700,755.23
  6. Step 6: Final answer
    x = 192,898,273.87

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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.