Home / 312,103,111.20-468,012,949.20-117,949,999.20

Finding the Fourth Proportional to 312,103,111.20, 468,012,949.20 and 117,949,999.20

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Solution

The fourth proportional to 312,103,111.20, 468,012,949.20 and 117,949,999.20 is: 176,871,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,103,111.20 : 468,012,949.20 = 117,949,999.20 : x
  2. Step 2: Convert to fraction form
    312,103,111.20/468,012,949.20 = 117,949,999.20/x
  3. Step 3: Cross multiply
    312,103,111.20x = 468,012,949.20 × 117,949,999.20
  4. Step 4: Simplify right side
    312,103,111.20x = 55,202,126,983,729,640
  5. Step 5: Solve for x
    x = 55,202,126,983,729,640/312,103,111.20
  6. Step 6: Final answer
    x = 176,871,440.89

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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.