Home / 121,087,969.98-167,153,049.72-81,418,494.58

Finding the Fourth Proportional to 121,087,969.98, 167,153,049.72 and 81,418,494.58

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Solution

The fourth proportional to 121,087,969.98, 167,153,049.72 and 81,418,494.58 is: 112,392,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,087,969.98 : 167,153,049.72 = 81,418,494.58 : x
  2. Step 2: Convert to fraction form
    121,087,969.98/167,153,049.72 = 81,418,494.58/x
  3. Step 3: Cross multiply
    121,087,969.98x = 167,153,049.72 × 81,418,494.58
  4. Step 4: Simplify right side
    121,087,969.98x = 13,609,349,672,658,290
  5. Step 5: Solve for x
    x = 13,609,349,672,658,290/121,087,969.98
  6. Step 6: Final answer
    x = 112,392,252.30

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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.