Home / 262,359,009.40-393,538,514.10-221,544,340.60

Finding the Fourth Proportional to 262,359,009.40, 393,538,514.10 and 221,544,340.60

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Solution

The fourth proportional to 262,359,009.40, 393,538,514.10 and 221,544,340.60 is: 332,316,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,359,009.40 : 393,538,514.10 = 221,544,340.60 : x
  2. Step 2: Convert to fraction form
    262,359,009.40/393,538,514.10 = 221,544,340.60/x
  3. Step 3: Cross multiply
    262,359,009.40x = 393,538,514.10 × 221,544,340.60
  4. Step 4: Simplify right side
    262,359,009.40x = 87,186,230,606,988,304
  5. Step 5: Solve for x
    x = 87,186,230,606,988,304/262,359,009.40
  6. Step 6: Final answer
    x = 332,316,510.90

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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.