Home / 272,493,145.40-408,739,718.10-245,619,289.40

Finding the Fourth Proportional to 272,493,145.40, 408,739,718.10 and 245,619,289.40

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Solution

The fourth proportional to 272,493,145.40, 408,739,718.10 and 245,619,289.40 is: 368,428,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,493,145.40 : 408,739,718.10 = 245,619,289.40 : x
  2. Step 2: Convert to fraction form
    272,493,145.40/408,739,718.10 = 245,619,289.40/x
  3. Step 3: Cross multiply
    272,493,145.40x = 408,739,718.10 × 245,619,289.40
  4. Step 4: Simplify right side
    272,493,145.40x = 100,394,359,109,278,320
  5. Step 5: Solve for x
    x = 100,394,359,109,278,320/272,493,145.40
  6. Step 6: Final answer
    x = 368,428,934.10

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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.