Home / 278,720,053.40-418,080,080.10-96,967,231.40

Finding the Fourth Proportional to 278,720,053.40, 418,080,080.10 and 96,967,231.40

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Solution

The fourth proportional to 278,720,053.40, 418,080,080.10 and 96,967,231.40 is: 145,450,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,720,053.40 : 418,080,080.10 = 96,967,231.40 : x
  2. Step 2: Convert to fraction form
    278,720,053.40/418,080,080.10 = 96,967,231.40/x
  3. Step 3: Cross multiply
    278,720,053.40x = 418,080,080.10 × 96,967,231.40
  4. Step 4: Simplify right side
    278,720,053.40x = 40,540,067,870,787,240
  5. Step 5: Solve for x
    x = 40,540,067,870,787,240/278,720,053.40
  6. Step 6: Final answer
    x = 145,450,847.10

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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.