Home / 484,515,020.20-726,867,008.70-208,165,700.20

Finding the Fourth Proportional to 484,515,020.20, 726,867,008.70 and 208,165,700.20

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Solution

The fourth proportional to 484,515,020.20, 726,867,008.70 and 208,165,700.20 is: 312,289,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,515,020.20 : 726,867,008.70 = 208,165,700.20 : x
  2. Step 2: Convert to fraction form
    484,515,020.20/726,867,008.70 = 208,165,700.20/x
  3. Step 3: Cross multiply
    484,515,020.20x = 726,867,008.70 × 208,165,700.20
  4. Step 4: Simplify right side
    484,515,020.20x = 151,308,779,818,315,008
  5. Step 5: Solve for x
    x = 151,308,779,818,315,008/484,515,020.20
  6. Step 6: Final answer
    x = 312,289,141.74

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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.