Home / 1,328,609,200.20-1,992,913,800.30-408,365,964.60

Finding the Fourth Proportional to 1,328,609,200.20, 1,992,913,800.30 and 408,365,964.60

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Solution

The fourth proportional to 1,328,609,200.20, 1,992,913,800.30 and 408,365,964.60 is: 612,548,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,609,200.20 : 1,992,913,800.30 = 408,365,964.60 : x
  2. Step 2: Convert to fraction form
    1,328,609,200.20/1,992,913,800.30 = 408,365,964.60/x
  3. Step 3: Cross multiply
    1,328,609,200.20x = 1,992,913,800.30 × 408,365,964.60
  4. Step 4: Simplify right side
    1,328,609,200.20x = 813,838,166,424,161,280
  5. Step 5: Solve for x
    x = 813,838,166,424,161,280/1,328,609,200.20
  6. Step 6: Final answer
    x = 612,548,946.90

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Half scale
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Double scale
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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.