Home / 20,522,389,754.50-28,322,064,869.70-11,490,068,839.28

Finding the Fourth Proportional to 20,522,389,754.50, 28,322,064,869.70 and 11,490,068,839.28

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Solution

The fourth proportional to 20,522,389,754.50, 28,322,064,869.70 and 11,490,068,839.28 is: 15,856,948,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,389,754.50 : 28,322,064,869.70 = 11,490,068,839.28 : x
  2. Step 2: Convert to fraction form
    20,522,389,754.50/28,322,064,869.70 = 11,490,068,839.28/x
  3. Step 3: Cross multiply
    20,522,389,754.50x = 28,322,064,869.70 × 11,490,068,839.28
  4. Step 4: Simplify right side
    20,522,389,754.50x = 325,422,475,023,406,792,704
  5. Step 5: Solve for x
    x = 325,422,475,023,406,792,704/20,522,389,754.50
  6. Step 6: Final answer
    x = 15,856,948,382.54

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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.