Home / 918,876,316.62-1,268,156,520.89-522,458,703.71

Finding the Fourth Proportional to 918,876,316.62, 1,268,156,520.89 and 522,458,703.71

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Solution

The fourth proportional to 918,876,316.62, 1,268,156,520.89 and 522,458,703.71 is: 721,053,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,876,316.62 : 1,268,156,520.89 = 522,458,703.71 : x
  2. Step 2: Convert to fraction form
    918,876,316.62/1,268,156,520.89 = 522,458,703.71/x
  3. Step 3: Cross multiply
    918,876,316.62x = 1,268,156,520.89 × 522,458,703.71
  4. Step 4: Simplify right side
    918,876,316.62x = 662,559,411,996,619,776
  5. Step 5: Solve for x
    x = 662,559,411,996,619,776/918,876,316.62
  6. Step 6: Final answer
    x = 721,053,965.60

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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.