Home / 221,688,049.20-332,532,073.80-217,908,913.20

Finding the Fourth Proportional to 221,688,049.20, 332,532,073.80 and 217,908,913.20

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Solution

The fourth proportional to 221,688,049.20, 332,532,073.80 and 217,908,913.20 is: 326,863,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,688,049.20 : 332,532,073.80 = 217,908,913.20 : x
  2. Step 2: Convert to fraction form
    221,688,049.20/332,532,073.80 = 217,908,913.20/x
  3. Step 3: Cross multiply
    221,688,049.20x = 332,532,073.80 × 217,908,913.20
  4. Step 4: Simplify right side
    221,688,049.20x = 72,461,702,805,900,192
  5. Step 5: Solve for x
    x = 72,461,702,805,900,192/221,688,049.20
  6. Step 6: Final answer
    x = 326,863,369.80

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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.