Home / 438,182,459.39-656,701,393.56-334,170,819.78

Finding the Fourth Proportional to 438,182,459.39, 656,701,393.56 and 334,170,819.78

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Solution

The fourth proportional to 438,182,459.39, 656,701,393.56 and 334,170,819.78 is: 500,819,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,182,459.39 : 656,701,393.56 = 334,170,819.78 : x
  2. Step 2: Convert to fraction form
    438,182,459.39/656,701,393.56 = 334,170,819.78/x
  3. Step 3: Cross multiply
    438,182,459.39x = 656,701,393.56 × 334,170,819.78
  4. Step 4: Simplify right side
    438,182,459.39x = 219,450,443,034,779,104
  5. Step 5: Solve for x
    x = 219,450,443,034,779,104/438,182,459.39
  6. Step 6: Final answer
    x = 500,819,780.28

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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.