Home / 1,218,754,829.20-1,827,555,941.63-472,120,289.88

Finding the Fourth Proportional to 1,218,754,829.20, 1,827,555,941.63 and 472,120,289.88

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Solution

The fourth proportional to 1,218,754,829.20, 1,827,555,941.63 and 472,120,289.88 is: 707,957,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,754,829.20 : 1,827,555,941.63 = 472,120,289.88 : x
  2. Step 2: Convert to fraction form
    1,218,754,829.20/1,827,555,941.63 = 472,120,289.88/x
  3. Step 3: Cross multiply
    1,218,754,829.20x = 1,827,555,941.63 × 472,120,289.88
  4. Step 4: Simplify right side
    1,218,754,829.20x = 862,826,240,934,272,000
  5. Step 5: Solve for x
    x = 862,826,240,934,272,000/1,218,754,829.20
  6. Step 6: Final answer
    x = 707,957,187.34

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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.