Home / 531,442,909.20-797,164,363.80-520,105,501.20

Finding the Fourth Proportional to 531,442,909.20, 797,164,363.80 and 520,105,501.20

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Solution

The fourth proportional to 531,442,909.20, 797,164,363.80 and 520,105,501.20 is: 780,158,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,442,909.20 : 797,164,363.80 = 520,105,501.20 : x
  2. Step 2: Convert to fraction form
    531,442,909.20/797,164,363.80 = 520,105,501.20/x
  3. Step 3: Cross multiply
    531,442,909.20x = 797,164,363.80 × 520,105,501.20
  4. Step 4: Simplify right side
    531,442,909.20x = 414,609,570,972,978,112
  5. Step 5: Solve for x
    x = 414,609,570,972,978,112/531,442,909.20
  6. Step 6: Final answer
    x = 780,158,251.80

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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.