Home / 272,617,235.70-408,925,853.55-163,778,118.90

Finding the Fourth Proportional to 272,617,235.70, 408,925,853.55 and 163,778,118.90

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Solution

The fourth proportional to 272,617,235.70, 408,925,853.55 and 163,778,118.90 is: 245,667,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,617,235.70 : 408,925,853.55 = 163,778,118.90 : x
  2. Step 2: Convert to fraction form
    272,617,235.70/408,925,853.55 = 163,778,118.90/x
  3. Step 3: Cross multiply
    272,617,235.70x = 408,925,853.55 × 163,778,118.90
  4. Step 4: Simplify right side
    272,617,235.70x = 66,973,107,063,995,888
  5. Step 5: Solve for x
    x = 66,973,107,063,995,888/272,617,235.70
  6. Step 6: Final answer
    x = 245,667,178.35

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Similar ratio
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1.5x scale

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.