Home / 18,441,693,418.52-25,449,545,432.30-9,983,517,195.78

Finding the Fourth Proportional to 18,441,693,418.52, 25,449,545,432.30 and 9,983,517,195.78

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Solution

The fourth proportional to 18,441,693,418.52, 25,449,545,432.30 and 9,983,517,195.78 is: 13,777,258,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,693,418.52 : 25,449,545,432.30 = 9,983,517,195.78 : x
  2. Step 2: Convert to fraction form
    18,441,693,418.52/25,449,545,432.30 = 9,983,517,195.78/x
  3. Step 3: Cross multiply
    18,441,693,418.52x = 25,449,545,432.30 × 9,983,517,195.78
  4. Step 4: Simplify right side
    18,441,693,418.52x = 254,075,974,448,101,490,688
  5. Step 5: Solve for x
    x = 254,075,974,448,101,490,688/18,441,693,418.52
  6. Step 6: Final answer
    x = 13,777,258,339.68

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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.