Home / 465,948,011.20-698,922,016.80-312,667,499.20

Finding the Fourth Proportional to 465,948,011.20, 698,922,016.80 and 312,667,499.20

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Solution

The fourth proportional to 465,948,011.20, 698,922,016.80 and 312,667,499.20 is: 469,001,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,948,011.20 : 698,922,016.80 = 312,667,499.20 : x
  2. Step 2: Convert to fraction form
    465,948,011.20/698,922,016.80 = 312,667,499.20/x
  3. Step 3: Cross multiply
    465,948,011.20x = 698,922,016.80 × 312,667,499.20
  4. Step 4: Simplify right side
    465,948,011.20x = 218,530,199,128,676,352
  5. Step 5: Solve for x
    x = 218,530,199,128,676,352/465,948,011.20
  6. Step 6: Final answer
    x = 469,001,248.80

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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.