Home / 198,087,643.75-273,369,486.03-109,981,645.75

Finding the Fourth Proportional to 198,087,643.75, 273,369,486.03 and 109,981,645.75

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Solution

The fourth proportional to 198,087,643.75, 273,369,486.03 and 109,981,645.75 is: 151,779,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,087,643.75 : 273,369,486.03 = 109,981,645.75 : x
  2. Step 2: Convert to fraction form
    198,087,643.75/273,369,486.03 = 109,981,645.75/x
  3. Step 3: Cross multiply
    198,087,643.75x = 273,369,486.03 × 109,981,645.75
  4. Step 4: Simplify right side
    198,087,643.75x = 30,065,625,971,531,672
  5. Step 5: Solve for x
    x = 30,065,625,971,531,672/198,087,643.75
  6. Step 6: Final answer
    x = 151,779,411.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.