Home / 519,761,215.20-779,643,151.92-131,584,087.12

Finding the Fourth Proportional to 519,761,215.20, 779,643,151.92 and 131,584,087.12

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Solution

The fourth proportional to 519,761,215.20, 779,643,151.92 and 131,584,087.12 is: 197,376,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,761,215.20 : 779,643,151.92 = 131,584,087.12 : x
  2. Step 2: Convert to fraction form
    519,761,215.20/779,643,151.92 = 131,584,087.12/x
  3. Step 3: Cross multiply
    519,761,215.20x = 779,643,151.92 × 131,584,087.12
  4. Step 4: Simplify right side
    519,761,215.20x = 102,588,632,424,752,672
  5. Step 5: Solve for x
    x = 102,588,632,424,752,672/519,761,215.20
  6. Step 6: Final answer
    x = 197,376,467.16

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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.