Home / 712,177,404.80-1,068,266,107.20-647,554,179.20

Finding the Fourth Proportional to 712,177,404.80, 1,068,266,107.20 and 647,554,179.20

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Solution

The fourth proportional to 712,177,404.80, 1,068,266,107.20 and 647,554,179.20 is: 971,331,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,177,404.80 : 1,068,266,107.20 = 647,554,179.20 : x
  2. Step 2: Convert to fraction form
    712,177,404.80/1,068,266,107.20 = 647,554,179.20/x
  3. Step 3: Cross multiply
    712,177,404.80x = 1,068,266,107.20 × 647,554,179.20
  4. Step 4: Simplify right side
    712,177,404.80x = 691,760,182,215,075,328
  5. Step 5: Solve for x
    x = 691,760,182,215,075,328/712,177,404.80
  6. Step 6: Final answer
    x = 971,331,268.80

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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.