Home / 218,581,638.90-327,873,867.66-87,434,870.64

Finding the Fourth Proportional to 218,581,638.90, 327,873,867.66 and 87,434,870.64

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Solution

The fourth proportional to 218,581,638.90, 327,873,867.66 and 87,434,870.64 is: 131,152,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,581,638.90 : 327,873,867.66 = 87,434,870.64 : x
  2. Step 2: Convert to fraction form
    218,581,638.90/327,873,867.66 = 87,434,870.64/x
  3. Step 3: Cross multiply
    218,581,638.90x = 327,873,867.66 × 87,434,870.64
  4. Step 4: Simplify right side
    218,581,638.90x = 28,667,609,205,088,580
  5. Step 5: Solve for x
    x = 28,667,609,205,088,580/218,581,638.90
  6. Step 6: Final answer
    x = 131,152,869.70

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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.