Home / 228,543,084.90-315,408,908.52-129,441,461.90

Finding the Fourth Proportional to 228,543,084.90, 315,408,908.52 and 129,441,461.90

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Solution

The fourth proportional to 228,543,084.90, 315,408,908.52 and 129,441,461.90 is: 178,640,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,543,084.90 : 315,408,908.52 = 129,441,461.90 : x
  2. Step 2: Convert to fraction form
    228,543,084.90/315,408,908.52 = 129,441,461.90/x
  3. Step 3: Cross multiply
    228,543,084.90x = 315,408,908.52 × 129,441,461.90
  4. Step 4: Simplify right side
    228,543,084.90x = 40,826,990,213,535,120
  5. Step 5: Solve for x
    x = 40,826,990,213,535,120/228,543,084.90
  6. Step 6: Final answer
    x = 178,640,234.21

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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.