Home / 7,938,825,123.85-11,904,743,240.54-4,207,242,240.15

Finding the Fourth Proportional to 7,938,825,123.85, 11,904,743,240.54 and 4,207,242,240.15

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Solution

The fourth proportional to 7,938,825,123.85, 11,904,743,240.54 and 4,207,242,240.15 is: 6,309,011,451.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938,825,123.85 : 11,904,743,240.54 = 4,207,242,240.15 : x
  2. Step 2: Convert to fraction form
    7,938,825,123.85/11,904,743,240.54 = 4,207,242,240.15/x
  3. Step 3: Cross multiply
    7,938,825,123.85x = 11,904,743,240.54 × 4,207,242,240.15
  4. Step 4: Simplify right side
    7,938,825,123.85x = 50,086,138,619,673,804,800
  5. Step 5: Solve for x
    x = 50,086,138,619,673,804,800/7,938,825,123.85
  6. Step 6: Final answer
    x = 6,309,011,451.73

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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.