Home / 90,885,888,081.20-136,328,832,121.80-68,845,966,929.20

Finding the Fourth Proportional to 90,885,888,081.20, 136,328,832,121.80 and 68,845,966,929.20

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Solution

The fourth proportional to 90,885,888,081.20, 136,328,832,121.80 and 68,845,966,929.20 is: 103,268,950,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,885,888,081.20 : 136,328,832,121.80 = 68,845,966,929.20 : x
  2. Step 2: Convert to fraction form
    90,885,888,081.20/136,328,832,121.80 = 68,845,966,929.20/x
  3. Step 3: Cross multiply
    90,885,888,081.20x = 136,328,832,121.80 × 68,845,966,929.20
  4. Step 4: Simplify right side
    90,885,888,081.20x = 9,385,690,267,753,900,933,120
  5. Step 5: Solve for x
    x = 9,385,690,267,753,900,933,120/90,885,888,081.20
  6. Step 6: Final answer
    x = 103,268,950,393.80

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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.