Home / 28,342,869.60-42,514,304.40-10,389,640.80

Finding the Fourth Proportional to 28,342,869.60, 42,514,304.40 and 10,389,640.80

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Solution

The fourth proportional to 28,342,869.60, 42,514,304.40 and 10,389,640.80 is: 15,584,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,869.60 : 42,514,304.40 = 10,389,640.80 : x
  2. Step 2: Convert to fraction form
    28,342,869.60/42,514,304.40 = 10,389,640.80/x
  3. Step 3: Cross multiply
    28,342,869.60x = 42,514,304.40 × 10,389,640.80
  4. Step 4: Simplify right side
    28,342,869.60x = 441,708,351,577,859.56
  5. Step 5: Solve for x
    x = 441,708,351,577,859.56/28,342,869.60
  6. Step 6: Final answer
    x = 15,584,461.20

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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.