Home / 218,734,805.70-328,060,218.15-65,385,864.90

Finding the Fourth Proportional to 218,734,805.70, 328,060,218.15 and 65,385,864.90

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Solution

The fourth proportional to 218,734,805.70, 328,060,218.15 and 65,385,864.90 is: 98,066,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,734,805.70 : 328,060,218.15 = 65,385,864.90 : x
  2. Step 2: Convert to fraction form
    218,734,805.70/328,060,218.15 = 65,385,864.90/x
  3. Step 3: Cross multiply
    218,734,805.70x = 328,060,218.15 × 65,385,864.90
  4. Step 4: Simplify right side
    218,734,805.70x = 21,450,501,103,020,424
  5. Step 5: Solve for x
    x = 21,450,501,103,020,424/218,734,805.70
  6. Step 6: Final answer
    x = 98,066,245.26

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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.