Home / 90,876,821,123.40-136,315,231,685.10-43,805,231,709.90

Finding the Fourth Proportional to 90,876,821,123.40, 136,315,231,685.10 and 43,805,231,709.90

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Solution

The fourth proportional to 90,876,821,123.40, 136,315,231,685.10 and 43,805,231,709.90 is: 65,707,847,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,876,821,123.40 : 136,315,231,685.10 = 43,805,231,709.90 : x
  2. Step 2: Convert to fraction form
    90,876,821,123.40/136,315,231,685.10 = 43,805,231,709.90/x
  3. Step 3: Cross multiply
    90,876,821,123.40x = 136,315,231,685.10 × 43,805,231,709.90
  4. Step 4: Simplify right side
    90,876,821,123.40x = 5,971,320,309,554,508,464,128
  5. Step 5: Solve for x
    x = 5,971,320,309,554,508,464,128/90,876,821,123.40
  6. Step 6: Final answer
    x = 65,707,847,564.85

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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.