Home / 83,044,642.80-124,566,964.20-78,261,673.80

Finding the Fourth Proportional to 83,044,642.80, 124,566,964.20 and 78,261,673.80

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Solution

The fourth proportional to 83,044,642.80, 124,566,964.20 and 78,261,673.80 is: 117,392,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,044,642.80 : 124,566,964.20 = 78,261,673.80 : x
  2. Step 2: Convert to fraction form
    83,044,642.80/124,566,964.20 = 78,261,673.80/x
  3. Step 3: Cross multiply
    83,044,642.80x = 124,566,964.20 × 78,261,673.80
  4. Step 4: Simplify right side
    83,044,642.80x = 9,748,819,118,476,678
  5. Step 5: Solve for x
    x = 9,748,819,118,476,678/83,044,642.80
  6. Step 6: Final answer
    x = 117,392,510.70

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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.