Home / 1,324,139,372.80-1,986,209,059.20-1,178,737,115.20

Finding the Fourth Proportional to 1,324,139,372.80, 1,986,209,059.20 and 1,178,737,115.20

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Solution

The fourth proportional to 1,324,139,372.80, 1,986,209,059.20 and 1,178,737,115.20 is: 1,768,105,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,139,372.80 : 1,986,209,059.20 = 1,178,737,115.20 : x
  2. Step 2: Convert to fraction form
    1,324,139,372.80/1,986,209,059.20 = 1,178,737,115.20/x
  3. Step 3: Cross multiply
    1,324,139,372.80x = 1,986,209,059.20 × 1,178,737,115.20
  4. Step 4: Simplify right side
    1,324,139,372.80x = 2,341,218,336,625,513,984
  5. Step 5: Solve for x
    x = 2,341,218,336,625,513,984/1,324,139,372.80
  6. Step 6: Final answer
    x = 1,768,105,672.80

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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.