Home / 157,545,348.35-217,152,370.80-105,315,326.87

Finding the Fourth Proportional to 157,545,348.35, 217,152,370.80 and 105,315,326.87

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Solution

The fourth proportional to 157,545,348.35, 217,152,370.80 and 105,315,326.87 is: 145,161,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,545,348.35 : 217,152,370.80 = 105,315,326.87 : x
  2. Step 2: Convert to fraction form
    157,545,348.35/217,152,370.80 = 105,315,326.87/x
  3. Step 3: Cross multiply
    157,545,348.35x = 217,152,370.80 × 105,315,326.87
  4. Step 4: Simplify right side
    157,545,348.35x = 22,869,472,910,311,680
  5. Step 5: Solve for x
    x = 22,869,472,910,311,680/157,545,348.35
  6. Step 6: Final answer
    x = 145,161,206.92

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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.