Home / 804,816,066.20-1,207,112,124.90-259,612,712.60

Finding the Fourth Proportional to 804,816,066.20, 1,207,112,124.90 and 259,612,712.60

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Solution

The fourth proportional to 804,816,066.20, 1,207,112,124.90 and 259,612,712.60 is: 389,382,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,816,066.20 : 1,207,112,124.90 = 259,612,712.60 : x
  2. Step 2: Convert to fraction form
    804,816,066.20/1,207,112,124.90 = 259,612,712.60/x
  3. Step 3: Cross multiply
    804,816,066.20x = 1,207,112,124.90 × 259,612,712.60
  4. Step 4: Simplify right side
    804,816,066.20x = 313,381,653,157,639,040
  5. Step 5: Solve for x
    x = 313,381,653,157,639,040/804,816,066.20
  6. Step 6: Final answer
    x = 389,382,948.87

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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.