Home / 121,470,493.50-167,629,281.03-66,466,350

Finding the Fourth Proportional to 121,470,493.50, 167,629,281.03 and 66,466,350

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Solution

The fourth proportional to 121,470,493.50, 167,629,281.03 and 66,466,350 is: 91,723,563

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,470,493.50 : 167,629,281.03 = 66,466,350 : x
  2. Step 2: Convert to fraction form
    121,470,493.50/167,629,281.03 = 66,466,350/x
  3. Step 3: Cross multiply
    121,470,493.50x = 167,629,281.03 × 66,466,350
  4. Step 4: Simplify right side
    121,470,493.50x = 11,141,706,463,188,340
  5. Step 5: Solve for x
    x = 11,141,706,463,188,340/121,470,493.50
  6. Step 6: Final answer
    x = 91,723,563

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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.