Home / 15,312,483.88-21,131,706.27-8,787,306.94

Finding the Fourth Proportional to 15,312,483.88, 21,131,706.27 and 8,787,306.94

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Solution

The fourth proportional to 15,312,483.88, 21,131,706.27 and 8,787,306.94 is: 12,126,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,483.88 : 21,131,706.27 = 8,787,306.94 : x
  2. Step 2: Convert to fraction form
    15,312,483.88/21,131,706.27 = 8,787,306.94/x
  3. Step 3: Cross multiply
    15,312,483.88x = 21,131,706.27 × 8,787,306.94
  4. Step 4: Simplify right side
    15,312,483.88x = 185,690,789,160,412.50
  5. Step 5: Solve for x
    x = 185,690,789,160,412.50/15,312,483.88
  6. Step 6: Final answer
    x = 12,126,758.18

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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.