Home / 574,520,281.20-861,780,421.80-399,168,370.80

Finding the Fourth Proportional to 574,520,281.20, 861,780,421.80 and 399,168,370.80

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Solution

The fourth proportional to 574,520,281.20, 861,780,421.80 and 399,168,370.80 is: 598,752,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,520,281.20 : 861,780,421.80 = 399,168,370.80 : x
  2. Step 2: Convert to fraction form
    574,520,281.20/861,780,421.80 = 399,168,370.80/x
  3. Step 3: Cross multiply
    574,520,281.20x = 861,780,421.80 × 399,168,370.80
  4. Step 4: Simplify right side
    574,520,281.20x = 343,995,486,957,242,816
  5. Step 5: Solve for x
    x = 343,995,486,957,242,816/574,520,281.20
  6. Step 6: Final answer
    x = 598,752,556.20

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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.