Home / 221,260,363.20-331,890,544.80-199,341,374.40

Finding the Fourth Proportional to 221,260,363.20, 331,890,544.80 and 199,341,374.40

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Solution

The fourth proportional to 221,260,363.20, 331,890,544.80 and 199,341,374.40 is: 299,012,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,260,363.20 : 331,890,544.80 = 199,341,374.40 : x
  2. Step 2: Convert to fraction form
    221,260,363.20/331,890,544.80 = 199,341,374.40/x
  3. Step 3: Cross multiply
    221,260,363.20x = 331,890,544.80 × 199,341,374.40
  4. Step 4: Simplify right side
    221,260,363.20x = 66,159,517,350,796,776
  5. Step 5: Solve for x
    x = 66,159,517,350,796,776/221,260,363.20
  6. Step 6: Final answer
    x = 299,012,061.60

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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.