Home / 247,642,573.70-371,463,860.55-140,147,149.70

Finding the Fourth Proportional to 247,642,573.70, 371,463,860.55 and 140,147,149.70

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Solution

The fourth proportional to 247,642,573.70, 371,463,860.55 and 140,147,149.70 is: 210,220,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,642,573.70 : 371,463,860.55 = 140,147,149.70 : x
  2. Step 2: Convert to fraction form
    247,642,573.70/371,463,860.55 = 140,147,149.70/x
  3. Step 3: Cross multiply
    247,642,573.70x = 371,463,860.55 × 140,147,149.70
  4. Step 4: Simplify right side
    247,642,573.70x = 52,059,601,272,640,768
  5. Step 5: Solve for x
    x = 52,059,601,272,640,768/247,642,573.70
  6. Step 6: Final answer
    x = 210,220,724.55

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Double scale
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Similar ratio
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1.5x scale

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.