Home / 485,825,369.28-728,152,562.50-223,147,442.80

Finding the Fourth Proportional to 485,825,369.28, 728,152,562.50 and 223,147,442.80

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Solution

The fourth proportional to 485,825,369.28, 728,152,562.50 and 223,147,442.80 is: 334,452,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,825,369.28 : 728,152,562.50 = 223,147,442.80 : x
  2. Step 2: Convert to fraction form
    485,825,369.28/728,152,562.50 = 223,147,442.80/x
  3. Step 3: Cross multiply
    485,825,369.28x = 728,152,562.50 × 223,147,442.80
  4. Step 4: Simplify right side
    485,825,369.28x = 162,485,382,290,142,176
  5. Step 5: Solve for x
    x = 162,485,382,290,142,176/485,825,369.28
  6. Step 6: Final answer
    x = 334,452,238.53

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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.