Home / 1,020,349,819.20-1,530,524,728.80-437,984,961.60

Finding the Fourth Proportional to 1,020,349,819.20, 1,530,524,728.80 and 437,984,961.60

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Solution

The fourth proportional to 1,020,349,819.20, 1,530,524,728.80 and 437,984,961.60 is: 656,977,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,349,819.20 : 1,530,524,728.80 = 437,984,961.60 : x
  2. Step 2: Convert to fraction form
    1,020,349,819.20/1,530,524,728.80 = 437,984,961.60/x
  3. Step 3: Cross multiply
    1,020,349,819.20x = 1,530,524,728.80 × 437,984,961.60
  4. Step 4: Simplify right side
    1,020,349,819.20x = 670,346,814,571,318,400
  5. Step 5: Solve for x
    x = 670,346,814,571,318,400/1,020,349,819.20
  6. Step 6: Final answer
    x = 656,977,442.40

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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.