Home / 124,342,040.80-186,513,061.20-78,992,408.80

Finding the Fourth Proportional to 124,342,040.80, 186,513,061.20 and 78,992,408.80

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Solution

The fourth proportional to 124,342,040.80, 186,513,061.20 and 78,992,408.80 is: 118,488,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,342,040.80 : 186,513,061.20 = 78,992,408.80 : x
  2. Step 2: Convert to fraction form
    124,342,040.80/186,513,061.20 = 78,992,408.80/x
  3. Step 3: Cross multiply
    124,342,040.80x = 186,513,061.20 × 78,992,408.80
  4. Step 4: Simplify right side
    124,342,040.80x = 14,733,115,976,849,818
  5. Step 5: Solve for x
    x = 14,733,115,976,849,818/124,342,040.80
  6. Step 6: Final answer
    x = 118,488,613.20

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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.