Home / 120,225,422.30-180,454,749-58,020,512.87

Finding the Fourth Proportional to 120,225,422.30, 180,454,749 and 58,020,512.87

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Solution

The fourth proportional to 120,225,422.30, 180,454,749 and 58,020,512.87 is: 87,087,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,225,422.30 : 180,454,749 = 58,020,512.87 : x
  2. Step 2: Convert to fraction form
    120,225,422.30/180,454,749 = 58,020,512.87/x
  3. Step 3: Cross multiply
    120,225,422.30x = 180,454,749 × 58,020,512.87
  4. Step 4: Simplify right side
    120,225,422.30x = 10,470,077,086,807,120
  5. Step 5: Solve for x
    x = 10,470,077,086,807,120/120,225,422.30
  6. Step 6: Final answer
    x = 87,087,047.70

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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.