Home / 272,617,255.20-408,925,882.80-163,778,138.40

Finding the Fourth Proportional to 272,617,255.20, 408,925,882.80 and 163,778,138.40

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Solution

The fourth proportional to 272,617,255.20, 408,925,882.80 and 163,778,138.40 is: 245,667,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,617,255.20 : 408,925,882.80 = 163,778,138.40 : x
  2. Step 2: Convert to fraction form
    272,617,255.20/408,925,882.80 = 163,778,138.40/x
  3. Step 3: Cross multiply
    272,617,255.20x = 408,925,882.80 × 163,778,138.40
  4. Step 4: Simplify right side
    272,617,255.20x = 66,973,119,828,560,584
  5. Step 5: Solve for x
    x = 66,973,119,828,560,584/272,617,255.20
  6. Step 6: Final answer
    x = 245,667,207.60

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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.