Home / 83,105,668.20-124,660,640.70-39,376,165.80

Finding the Fourth Proportional to 83,105,668.20, 124,660,640.70 and 39,376,165.80

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Solution

The fourth proportional to 83,105,668.20, 124,660,640.70 and 39,376,165.80 is: 59,065,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,105,668.20 : 124,660,640.70 = 39,376,165.80 : x
  2. Step 2: Convert to fraction form
    83,105,668.20/124,660,640.70 = 39,376,165.80/x
  3. Step 3: Cross multiply
    83,105,668.20x = 124,660,640.70 × 39,376,165.80
  4. Step 4: Simplify right side
    83,105,668.20x = 4,908,658,056,937,428
  5. Step 5: Solve for x
    x = 4,908,658,056,937,428/83,105,668.20
  6. Step 6: Final answer
    x = 59,065,261.89

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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.