Home / 521,520,782,629.80-782,281,173,944.70-433,361,098,021.80

Finding the Fourth Proportional to 521,520,782,629.80, 782,281,173,944.70 and 433,361,098,021.80

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Solution

The fourth proportional to 521,520,782,629.80, 782,281,173,944.70 and 433,361,098,021.80 is: 650,041,647,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,782,629.80 : 782,281,173,944.70 = 433,361,098,021.80 : x
  2. Step 2: Convert to fraction form
    521,520,782,629.80/782,281,173,944.70 = 433,361,098,021.80/x
  3. Step 3: Cross multiply
    521,520,782,629.80x = 782,281,173,944.70 × 433,361,098,021.80
  4. Step 4: Simplify right side
    521,520,782,629.80x = 339,010,228,502,457,879,625,728
  5. Step 5: Solve for x
    x = 339,010,228,502,457,879,625,728/521,520,782,629.80
  6. Step 6: Final answer
    x = 650,041,647,032.70

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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.