Home / 1,074,505,869.30-1,612,156,935.15-428,737,062.90

Finding the Fourth Proportional to 1,074,505,869.30, 1,612,156,935.15 and 428,737,062.90

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Solution

The fourth proportional to 1,074,505,869.30, 1,612,156,935.15 and 428,737,062.90 is: 643,264,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,505,869.30 : 1,612,156,935.15 = 428,737,062.90 : x
  2. Step 2: Convert to fraction form
    1,074,505,869.30/1,612,156,935.15 = 428,737,062.90/x
  3. Step 3: Cross multiply
    1,074,505,869.30x = 1,612,156,935.15 × 428,737,062.90
  4. Step 4: Simplify right side
    1,074,505,869.30x = 691,191,429,310,076,800
  5. Step 5: Solve for x
    x = 691,191,429,310,076,800/1,074,505,869.30
  6. Step 6: Final answer
    x = 643,264,452.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.