Home / 221,343,905.20-332,015,857.80-67,989,715.60

Finding the Fourth Proportional to 221,343,905.20, 332,015,857.80 and 67,989,715.60

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Solution

The fourth proportional to 221,343,905.20, 332,015,857.80 and 67,989,715.60 is: 101,984,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,343,905.20 : 332,015,857.80 = 67,989,715.60 : x
  2. Step 2: Convert to fraction form
    221,343,905.20/332,015,857.80 = 67,989,715.60/x
  3. Step 3: Cross multiply
    221,343,905.20x = 332,015,857.80 × 67,989,715.60
  4. Step 4: Simplify right side
    221,343,905.20x = 22,573,663,746,512,040
  5. Step 5: Solve for x
    x = 22,573,663,746,512,040/221,343,905.20
  6. Step 6: Final answer
    x = 101,984,573.40

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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.