Home / 90,699,696,033.10-136,049,544,049.65-81,557,210,221.90

Finding the Fourth Proportional to 90,699,696,033.10, 136,049,544,049.65 and 81,557,210,221.90

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Solution

The fourth proportional to 90,699,696,033.10, 136,049,544,049.65 and 81,557,210,221.90 is: 122,335,815,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,696,033.10 : 136,049,544,049.65 = 81,557,210,221.90 : x
  2. Step 2: Convert to fraction form
    90,699,696,033.10/136,049,544,049.65 = 81,557,210,221.90/x
  3. Step 3: Cross multiply
    90,699,696,033.10x = 136,049,544,049.65 × 81,557,210,221.90
  4. Step 4: Simplify right side
    90,699,696,033.10x = 11,095,821,264,650,948,837,376
  5. Step 5: Solve for x
    x = 11,095,821,264,650,948,837,376/90,699,696,033.10
  6. Step 6: Final answer
    x = 122,335,815,332.85

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Similar ratio
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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.