Home / 918,876,314.36-1,268,156,517.77-522,458,701.46

Finding the Fourth Proportional to 918,876,314.36, 1,268,156,517.77 and 522,458,701.46

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Solution

The fourth proportional to 918,876,314.36, 1,268,156,517.77 and 522,458,701.46 is: 721,053,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,876,314.36 : 1,268,156,517.77 = 522,458,701.46 : x
  2. Step 2: Convert to fraction form
    918,876,314.36/1,268,156,517.77 = 522,458,701.46/x
  3. Step 3: Cross multiply
    918,876,314.36x = 1,268,156,517.77 × 522,458,701.46
  4. Step 4: Simplify right side
    918,876,314.36x = 662,559,407,521,870,592
  5. Step 5: Solve for x
    x = 662,559,407,521,870,592/918,876,314.36
  6. Step 6: Final answer
    x = 721,053,962.50

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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.