Home / 485,612,890.34-728,425,535.94-140,566,849.47

Finding the Fourth Proportional to 485,612,890.34, 728,425,535.94 and 140,566,849.47

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Solution

The fourth proportional to 485,612,890.34, 728,425,535.94 and 140,566,849.47 is: 210,852,069.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,612,890.34 : 728,425,535.94 = 140,566,849.47 : x
  2. Step 2: Convert to fraction form
    485,612,890.34/728,425,535.94 = 140,566,849.47/x
  3. Step 3: Cross multiply
    485,612,890.34x = 728,425,535.94 × 140,566,849.47
  4. Step 4: Simplify right side
    485,612,890.34x = 102,392,482,660,582,064
  5. Step 5: Solve for x
    x = 102,392,482,660,582,064/485,612,890.34
  6. Step 6: Final answer
    x = 210,852,069.00

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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.