Home / 862,734,872.80-1,294,102,309.20-647,744,024.80

Finding the Fourth Proportional to 862,734,872.80, 1,294,102,309.20 and 647,744,024.80

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Solution

The fourth proportional to 862,734,872.80, 1,294,102,309.20 and 647,744,024.80 is: 971,616,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,734,872.80 : 1,294,102,309.20 = 647,744,024.80 : x
  2. Step 2: Convert to fraction form
    862,734,872.80/1,294,102,309.20 = 647,744,024.80/x
  3. Step 3: Cross multiply
    862,734,872.80x = 1,294,102,309.20 × 647,744,024.80
  4. Step 4: Simplify right side
    862,734,872.80x = 838,247,038,264,182,016
  5. Step 5: Solve for x
    x = 838,247,038,264,182,016/862,734,872.80
  6. Step 6: Final answer
    x = 971,616,037.20

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1.5x scale

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.