Home / 217,728,000.20-326,592,000.30-212,689,152.20

Finding the Fourth Proportional to 217,728,000.20, 326,592,000.30 and 212,689,152.20

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Solution

The fourth proportional to 217,728,000.20, 326,592,000.30 and 212,689,152.20 is: 319,033,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,728,000.20 : 326,592,000.30 = 212,689,152.20 : x
  2. Step 2: Convert to fraction form
    217,728,000.20/326,592,000.30 = 212,689,152.20/x
  3. Step 3: Cross multiply
    217,728,000.20x = 326,592,000.30 × 212,689,152.20
  4. Step 4: Simplify right side
    217,728,000.20x = 69,462,575,659,109,144
  5. Step 5: Solve for x
    x = 69,462,575,659,109,144/217,728,000.20
  6. Step 6: Final answer
    x = 319,033,728.30

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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.