Home / 121,217,600.80-181,826,401.20-72,750,181.60

Finding the Fourth Proportional to 121,217,600.80, 181,826,401.20 and 72,750,181.60

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Solution

The fourth proportional to 121,217,600.80, 181,826,401.20 and 72,750,181.60 is: 109,125,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,217,600.80 : 181,826,401.20 = 72,750,181.60 : x
  2. Step 2: Convert to fraction form
    121,217,600.80/181,826,401.20 = 72,750,181.60/x
  3. Step 3: Cross multiply
    121,217,600.80x = 181,826,401.20 × 72,750,181.60
  4. Step 4: Simplify right side
    121,217,600.80x = 13,227,903,706,974,456
  5. Step 5: Solve for x
    x = 13,227,903,706,974,456/121,217,600.80
  6. Step 6: Final answer
    x = 109,125,272.40

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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.