Home / 918,876,315.50-1,268,156,519.33-522,458,702.60

Finding the Fourth Proportional to 918,876,315.50, 1,268,156,519.33 and 522,458,702.60

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Solution

The fourth proportional to 918,876,315.50, 1,268,156,519.33 and 522,458,702.60 is: 721,053,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,876,315.50 : 1,268,156,519.33 = 522,458,702.60 : x
  2. Step 2: Convert to fraction form
    918,876,315.50/1,268,156,519.33 = 522,458,702.60/x
  3. Step 3: Cross multiply
    918,876,315.50x = 1,268,156,519.33 × 522,458,702.60
  4. Step 4: Simplify right side
    918,876,315.50x = 662,559,409,773,930,624
  5. Step 5: Solve for x
    x = 662,559,409,773,930,624/918,876,315.50
  6. Step 6: Final answer
    x = 721,053,964.07

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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.