Home / 43,120,007.20-64,680,010.80-38,868,479.20

Finding the Fourth Proportional to 43,120,007.20, 64,680,010.80 and 38,868,479.20

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Solution

The fourth proportional to 43,120,007.20, 64,680,010.80 and 38,868,479.20 is: 58,302,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,120,007.20 : 64,680,010.80 = 38,868,479.20 : x
  2. Step 2: Convert to fraction form
    43,120,007.20/64,680,010.80 = 38,868,479.20/x
  3. Step 3: Cross multiply
    43,120,007.20x = 64,680,010.80 × 38,868,479.20
  4. Step 4: Simplify right side
    43,120,007.20x = 2,514,013,654,435,575.50
  5. Step 5: Solve for x
    x = 2,514,013,654,435,575.50/43,120,007.20
  6. Step 6: Final answer
    x = 58,302,718.80

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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.