Home / 218,699,434.80-328,053,040.20-65,347,383.60

Finding the Fourth Proportional to 218,699,434.80, 328,053,040.20 and 65,347,383.60

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Solution

The fourth proportional to 218,699,434.80, 328,053,040.20 and 65,347,383.60 is: 98,022,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,699,434.80 : 328,053,040.20 = 65,347,383.60 : x
  2. Step 2: Convert to fraction form
    218,699,434.80/328,053,040.20 = 65,347,383.60/x
  3. Step 3: Cross multiply
    218,699,434.80x = 328,053,040.20 × 65,347,383.60
  4. Step 4: Simplify right side
    218,699,434.80x = 21,437,407,859,095,620
  5. Step 5: Solve for x
    x = 21,437,407,859,095,620/218,699,434.80
  6. Step 6: Final answer
    x = 98,022,237.13

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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.