Home / 121,112,949.54-181,668,341.70-38,120,961.96

Finding the Fourth Proportional to 121,112,949.54, 181,668,341.70 and 38,120,961.96

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Solution

The fourth proportional to 121,112,949.54, 181,668,341.70 and 38,120,961.96 is: 57,181,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,112,949.54 : 181,668,341.70 = 38,120,961.96 : x
  2. Step 2: Convert to fraction form
    121,112,949.54/181,668,341.70 = 38,120,961.96/x
  3. Step 3: Cross multiply
    121,112,949.54x = 181,668,341.70 × 38,120,961.96
  4. Step 4: Simplify right side
    121,112,949.54x = 6,925,371,943,281,981
  5. Step 5: Solve for x
    x = 6,925,371,943,281,981/121,112,949.54
  6. Step 6: Final answer
    x = 57,181,102.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.