Home / 221,439,939.40-332,159,909.10-211,362,243.40

Finding the Fourth Proportional to 221,439,939.40, 332,159,909.10 and 211,362,243.40

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Solution

The fourth proportional to 221,439,939.40, 332,159,909.10 and 211,362,243.40 is: 317,043,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,439,939.40 : 332,159,909.10 = 211,362,243.40 : x
  2. Step 2: Convert to fraction form
    221,439,939.40/332,159,909.10 = 211,362,243.40/x
  3. Step 3: Cross multiply
    221,439,939.40x = 332,159,909.10 × 211,362,243.40
  4. Step 4: Simplify right side
    221,439,939.40x = 70,206,063,554,916,080
  5. Step 5: Solve for x
    x = 70,206,063,554,916,080/221,439,939.40
  6. Step 6: Final answer
    x = 317,043,365.10

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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.