Home / 121,795,332-168,077,378.28-66,040,651.14

Finding the Fourth Proportional to 121,795,332, 168,077,378.28 and 66,040,651.14

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Solution

The fourth proportional to 121,795,332, 168,077,378.28 and 66,040,651.14 is: 91,136,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,795,332 : 168,077,378.28 = 66,040,651.14 : x
  2. Step 2: Convert to fraction form
    121,795,332/168,077,378.28 = 66,040,651.14/x
  3. Step 3: Cross multiply
    121,795,332x = 168,077,378.28 × 66,040,651.14
  4. Step 4: Simplify right side
    121,795,332x = 11,099,939,503,515,294
  5. Step 5: Solve for x
    x = 11,099,939,503,515,294/121,795,332
  6. Step 6: Final answer
    x = 91,136,001.04

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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.