Home / 903,108,666,191.28-1,246,322,847,331-491,557,261,665.15

Finding the Fourth Proportional to 903,108,666,191.28, 1,246,322,847,331 and 491,557,261,665.15

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Solution

The fourth proportional to 903,108,666,191.28, 1,246,322,847,331 and 491,557,261,665.15 is: 678,366,921,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,108,666,191.28 : 1,246,322,847,331 = 491,557,261,665.15 : x
  2. Step 2: Convert to fraction form
    903,108,666,191.28/1,246,322,847,331 = 491,557,261,665.15/x
  3. Step 3: Cross multiply
    903,108,666,191.28x = 1,246,322,847,331 × 491,557,261,665.15
  4. Step 4: Simplify right side
    903,108,666,191.28x = 612,639,045,984,739,229,958,144
  5. Step 5: Solve for x
    x = 612,639,045,984,739,229,958,144/903,108,666,191.28
  6. Step 6: Final answer
    x = 678,366,921,854.98

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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.