Home / 995,040,691.60-1,373,596,523.88-642,788,474.32

Finding the Fourth Proportional to 995,040,691.60, 1,373,596,523.88 and 642,788,474.32

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Solution

The fourth proportional to 995,040,691.60, 1,373,596,523.88 and 642,788,474.32 is: 887,332,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,040,691.60 : 1,373,596,523.88 = 642,788,474.32 : x
  2. Step 2: Convert to fraction form
    995,040,691.60/1,373,596,523.88 = 642,788,474.32/x
  3. Step 3: Cross multiply
    995,040,691.60x = 1,373,596,523.88 × 642,788,474.32
  4. Step 4: Simplify right side
    995,040,691.60x = 882,932,013,916,080,768
  5. Step 5: Solve for x
    x = 882,932,013,916,080,768/995,040,691.60
  6. Step 6: Final answer
    x = 887,332,569.78

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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.