Home / 425,736,000.90-638,604,001.35-119,027,621.70

Finding the Fourth Proportional to 425,736,000.90, 638,604,001.35 and 119,027,621.70

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Solution

The fourth proportional to 425,736,000.90, 638,604,001.35 and 119,027,621.70 is: 178,541,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,736,000.90 : 638,604,001.35 = 119,027,621.70 : x
  2. Step 2: Convert to fraction form
    425,736,000.90/638,604,001.35 = 119,027,621.70/x
  3. Step 3: Cross multiply
    425,736,000.90x = 638,604,001.35 × 119,027,621.70
  4. Step 4: Simplify right side
    425,736,000.90x = 76,011,515,488,794,096
  5. Step 5: Solve for x
    x = 76,011,515,488,794,096/425,736,000.90
  6. Step 6: Final answer
    x = 178,541,432.55

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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.