Home / 272,496,007.20-408,744,010.80-231,681,338.40

Finding the Fourth Proportional to 272,496,007.20, 408,744,010.80 and 231,681,338.40

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Solution

The fourth proportional to 272,496,007.20, 408,744,010.80 and 231,681,338.40 is: 347,522,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,496,007.20 : 408,744,010.80 = 231,681,338.40 : x
  2. Step 2: Convert to fraction form
    272,496,007.20/408,744,010.80 = 231,681,338.40/x
  3. Step 3: Cross multiply
    272,496,007.20x = 408,744,010.80 × 231,681,338.40
  4. Step 4: Simplify right side
    272,496,007.20x = 94,698,359,485,128,064
  5. Step 5: Solve for x
    x = 94,698,359,485,128,064/272,496,007.20
  6. Step 6: Final answer
    x = 347,522,007.60

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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.