Home / 47,931,418.80-71,897,128.20-40,278,668.40

Finding the Fourth Proportional to 47,931,418.80, 71,897,128.20 and 40,278,668.40

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Solution

The fourth proportional to 47,931,418.80, 71,897,128.20 and 40,278,668.40 is: 60,418,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,931,418.80 : 71,897,128.20 = 40,278,668.40 : x
  2. Step 2: Convert to fraction form
    47,931,418.80/71,897,128.20 = 40,278,668.40/x
  3. Step 3: Cross multiply
    47,931,418.80x = 71,897,128.20 × 40,278,668.40
  4. Step 4: Simplify right side
    47,931,418.80x = 2,895,920,585,680,089
  5. Step 5: Solve for x
    x = 2,895,920,585,680,089/47,931,418.80
  6. Step 6: Final answer
    x = 60,418,002.60

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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.