Home / 1,328,543,520.40-1,992,815,280.60-510,682,502.80

Finding the Fourth Proportional to 1,328,543,520.40, 1,992,815,280.60 and 510,682,502.80

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Solution

The fourth proportional to 1,328,543,520.40, 1,992,815,280.60 and 510,682,502.80 is: 766,023,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,543,520.40 : 1,992,815,280.60 = 510,682,502.80 : x
  2. Step 2: Convert to fraction form
    1,328,543,520.40/1,992,815,280.60 = 510,682,502.80/x
  3. Step 3: Cross multiply
    1,328,543,520.40x = 1,992,815,280.60 × 510,682,502.80
  4. Step 4: Simplify right side
    1,328,543,520.40x = 1,017,695,895,114,892,288
  5. Step 5: Solve for x
    x = 1,017,695,895,114,892,288/1,328,543,520.40
  6. Step 6: Final answer
    x = 766,023,754.20

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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.