Home / 664,851,023.70-997,276,535.55-320,477,255.70

Finding the Fourth Proportional to 664,851,023.70, 997,276,535.55 and 320,477,255.70

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Solution

The fourth proportional to 664,851,023.70, 997,276,535.55 and 320,477,255.70 is: 480,715,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,851,023.70 : 997,276,535.55 = 320,477,255.70 : x
  2. Step 2: Convert to fraction form
    664,851,023.70/997,276,535.55 = 320,477,255.70/x
  3. Step 3: Cross multiply
    664,851,023.70x = 997,276,535.55 × 320,477,255.70
  4. Step 4: Simplify right side
    664,851,023.70x = 319,604,447,287,067,456
  5. Step 5: Solve for x
    x = 319,604,447,287,067,456/664,851,023.70
  6. Step 6: Final answer
    x = 480,715,883.55

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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.