Home / 121,490,246.89-167,656,432.37-68,578,091.91

Finding the Fourth Proportional to 121,490,246.89, 167,656,432.37 and 68,578,091.91

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Solution

The fourth proportional to 121,490,246.89, 167,656,432.37 and 68,578,091.91 is: 94,637,705.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,490,246.89 : 167,656,432.37 = 68,578,091.91 : x
  2. Step 2: Convert to fraction form
    121,490,246.89/167,656,432.37 = 68,578,091.91/x
  3. Step 3: Cross multiply
    121,490,246.89x = 167,656,432.37 × 68,578,091.91
  4. Step 4: Simplify right side
    121,490,246.89x = 11,497,558,228,609,154
  5. Step 5: Solve for x
    x = 11,497,558,228,609,154/121,490,246.89
  6. Step 6: Final answer
    x = 94,637,705.68

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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.