Home / 217,236,838.20-325,855,257.30-193,428,281.40

Finding the Fourth Proportional to 217,236,838.20, 325,855,257.30 and 193,428,281.40

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Solution

The fourth proportional to 217,236,838.20, 325,855,257.30 and 193,428,281.40 is: 290,142,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,236,838.20 : 325,855,257.30 = 193,428,281.40 : x
  2. Step 2: Convert to fraction form
    217,236,838.20/325,855,257.30 = 193,428,281.40/x
  3. Step 3: Cross multiply
    217,236,838.20x = 325,855,257.30 × 193,428,281.40
  4. Step 4: Simplify right side
    217,236,838.20x = 63,029,622,404,693,808
  5. Step 5: Solve for x
    x = 63,029,622,404,693,808/217,236,838.20
  6. Step 6: Final answer
    x = 290,142,422.10

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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.