Home / 499,968,007.20-749,952,010.80-131,502,247.20

Finding the Fourth Proportional to 499,968,007.20, 749,952,010.80 and 131,502,247.20

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Solution

The fourth proportional to 499,968,007.20, 749,952,010.80 and 131,502,247.20 is: 197,253,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,968,007.20 : 749,952,010.80 = 131,502,247.20 : x
  2. Step 2: Convert to fraction form
    499,968,007.20/749,952,010.80 = 131,502,247.20/x
  3. Step 3: Cross multiply
    499,968,007.20x = 749,952,010.80 × 131,502,247.20
  4. Step 4: Simplify right side
    499,968,007.20x = 98,620,374,712,358,672
  5. Step 5: Solve for x
    x = 98,620,374,712,358,672/499,968,007.20
  6. Step 6: Final answer
    x = 197,253,370.80

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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.