Home / 1,192,125,021.12-1,645,186,703.76-663,522,863.76

Finding the Fourth Proportional to 1,192,125,021.12, 1,645,186,703.76 and 663,522,863.76

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Solution

The fourth proportional to 1,192,125,021.12, 1,645,186,703.76 and 663,522,863.76 is: 915,691,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,125,021.12 : 1,645,186,703.76 = 663,522,863.76 : x
  2. Step 2: Convert to fraction form
    1,192,125,021.12/1,645,186,703.76 = 663,522,863.76/x
  3. Step 3: Cross multiply
    1,192,125,021.12x = 1,645,186,703.76 × 663,522,863.76
  4. Step 4: Simplify right side
    1,192,125,021.12x = 1,091,618,993,098,709,888
  5. Step 5: Solve for x
    x = 1,091,618,993,098,709,888/1,192,125,021.12
  6. Step 6: Final answer
    x = 915,691,704.95

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Double scale
Find fourth proportional to 1,192,125,022.12, 1,645,186,705.14 and 663,522,864.76
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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.