Home / 804,816,000.20-1,207,224,000.30-259,612,646.60

Finding the Fourth Proportional to 804,816,000.20, 1,207,224,000.30 and 259,612,646.60

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Solution

The fourth proportional to 804,816,000.20, 1,207,224,000.30 and 259,612,646.60 is: 389,418,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,816,000.20 : 1,207,224,000.30 = 259,612,646.60 : x
  2. Step 2: Convert to fraction form
    804,816,000.20/1,207,224,000.30 = 259,612,646.60/x
  3. Step 3: Cross multiply
    804,816,000.20x = 1,207,224,000.30 × 259,612,646.60
  4. Step 4: Simplify right side
    804,816,000.20x = 313,410,617,756,922,176
  5. Step 5: Solve for x
    x = 313,410,617,756,922,176/804,816,000.20
  6. Step 6: Final answer
    x = 389,418,969.90

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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.