Home / 543,108,810.40-815,189,342.24-513,613,834.88

Finding the Fourth Proportional to 543,108,810.40, 815,189,342.24 and 513,613,834.88

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Solution

The fourth proportional to 543,108,810.40, 815,189,342.24 and 513,613,834.88 is: 770,918,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,108,810.40 : 815,189,342.24 = 513,613,834.88 : x
  2. Step 2: Convert to fraction form
    543,108,810.40/815,189,342.24 = 513,613,834.88/x
  3. Step 3: Cross multiply
    543,108,810.40x = 815,189,342.24 × 513,613,834.88
  4. Step 4: Simplify right side
    543,108,810.40x = 418,692,524,221,191,168
  5. Step 5: Solve for x
    x = 418,692,524,221,191,168/543,108,810.40
  6. Step 6: Final answer
    x = 770,918,306.25

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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.