Home / 279,690,608.76-386,047,480.44-165,218,281.92

Finding the Fourth Proportional to 279,690,608.76, 386,047,480.44 and 165,218,281.92

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Solution

The fourth proportional to 279,690,608.76, 386,047,480.44 and 165,218,281.92 is: 228,045,202.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,690,608.76 : 386,047,480.44 = 165,218,281.92 : x
  2. Step 2: Convert to fraction form
    279,690,608.76/386,047,480.44 = 165,218,281.92/x
  3. Step 3: Cross multiply
    279,690,608.76x = 386,047,480.44 × 165,218,281.92
  4. Step 4: Simplify right side
    279,690,608.76x = 63,782,101,457,841,600
  5. Step 5: Solve for x
    x = 63,782,101,457,841,600/279,690,608.76
  6. Step 6: Final answer
    x = 228,045,202.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.