Home / 918,876,315.75-1,268,156,519.67-522,458,702.83

Finding the Fourth Proportional to 918,876,315.75, 1,268,156,519.67 and 522,458,702.83

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Solution

The fourth proportional to 918,876,315.75, 1,268,156,519.67 and 522,458,702.83 is: 721,053,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,876,315.75 : 1,268,156,519.67 = 522,458,702.83 : x
  2. Step 2: Convert to fraction form
    918,876,315.75/1,268,156,519.67 = 522,458,702.83/x
  3. Step 3: Cross multiply
    918,876,315.75x = 1,268,156,519.67 × 522,458,702.83
  4. Step 4: Simplify right side
    918,876,315.75x = 662,559,410,252,195,584
  5. Step 5: Solve for x
    x = 662,559,410,252,195,584/918,876,315.75
  6. Step 6: Final answer
    x = 721,053,964.39

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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.