Home / 432,939,115.31-649,343,057.15-117,829,699.35

Finding the Fourth Proportional to 432,939,115.31, 649,343,057.15 and 117,829,699.35

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Solution

The fourth proportional to 432,939,115.31, 649,343,057.15 and 117,829,699.35 is: 176,726,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,939,115.31 : 649,343,057.15 = 117,829,699.35 : x
  2. Step 2: Convert to fraction form
    432,939,115.31/649,343,057.15 = 117,829,699.35/x
  3. Step 3: Cross multiply
    432,939,115.31x = 649,343,057.15 × 117,829,699.35
  4. Step 4: Simplify right side
    432,939,115.31x = 76,511,897,198,405,216
  5. Step 5: Solve for x
    x = 76,511,897,198,405,216/432,939,115.31
  6. Step 6: Final answer
    x = 176,726,690.88

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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.