Home / 7,143,864,540.06-9,858,481,432.47-3,972,023,885.46

Finding the Fourth Proportional to 7,143,864,540.06, 9,858,481,432.47 and 3,972,023,885.46

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Solution

The fourth proportional to 7,143,864,540.06, 9,858,481,432.47 and 3,972,023,885.46 is: 5,481,364,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,864,540.06 : 9,858,481,432.47 = 3,972,023,885.46 : x
  2. Step 2: Convert to fraction form
    7,143,864,540.06/9,858,481,432.47 = 3,972,023,885.46/x
  3. Step 3: Cross multiply
    7,143,864,540.06x = 9,858,481,432.47 × 3,972,023,885.46
  4. Step 4: Simplify right side
    7,143,864,540.06x = 39,158,123,724,134,752,256
  5. Step 5: Solve for x
    x = 39,158,123,724,134,752,256/7,143,864,540.06
  6. Step 6: Final answer
    x = 5,481,364,253.84

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.