Home / 218,698,532.80-328,051,687.20-65,346,481.60

Finding the Fourth Proportional to 218,698,532.80, 328,051,687.20 and 65,346,481.60

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Solution

The fourth proportional to 218,698,532.80, 328,051,687.20 and 65,346,481.60 is: 98,020,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,698,532.80 : 328,051,687.20 = 65,346,481.60 : x
  2. Step 2: Convert to fraction form
    218,698,532.80/328,051,687.20 = 65,346,481.60/x
  3. Step 3: Cross multiply
    218,698,532.80x = 328,051,687.20 × 65,346,481.60
  4. Step 4: Simplify right side
    218,698,532.80x = 21,437,023,541,463,756
  5. Step 5: Solve for x
    x = 21,437,023,541,463,756/218,698,532.80
  6. Step 6: Final answer
    x = 98,020,884.12

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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.