Home / 121,937,401.82-168,273,799.26-66,182,842.58

Finding the Fourth Proportional to 121,937,401.82, 168,273,799.26 and 66,182,842.58

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Solution

The fourth proportional to 121,937,401.82, 168,273,799.26 and 66,182,842.58 is: 91,332,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,937,401.82 : 168,273,799.26 = 66,182,842.58 : x
  2. Step 2: Convert to fraction form
    121,937,401.82/168,273,799.26 = 66,182,842.58/x
  3. Step 3: Cross multiply
    121,937,401.82x = 168,273,799.26 × 66,182,842.58
  4. Step 4: Simplify right side
    121,937,401.82x = 11,136,838,366,992,528
  5. Step 5: Solve for x
    x = 11,136,838,366,992,528/121,937,401.82
  6. Step 6: Final answer
    x = 91,332,423.03

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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.