Home / 746,782,811.20-1,120,174,216.80-402,409,043.20

Finding the Fourth Proportional to 746,782,811.20, 1,120,174,216.80 and 402,409,043.20

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Solution

The fourth proportional to 746,782,811.20, 1,120,174,216.80 and 402,409,043.20 is: 603,613,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,782,811.20 : 1,120,174,216.80 = 402,409,043.20 : x
  2. Step 2: Convert to fraction form
    746,782,811.20/1,120,174,216.80 = 402,409,043.20/x
  3. Step 3: Cross multiply
    746,782,811.20x = 1,120,174,216.80 × 402,409,043.20
  4. Step 4: Simplify right side
    746,782,811.20x = 450,768,234,799,797,312
  5. Step 5: Solve for x
    x = 450,768,234,799,797,312/746,782,811.20
  6. Step 6: Final answer
    x = 603,613,564.80

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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.