Home / 445,312,139.40-667,968,209.10-263,465,713.80

Finding the Fourth Proportional to 445,312,139.40, 667,968,209.10 and 263,465,713.80

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Solution

The fourth proportional to 445,312,139.40, 667,968,209.10 and 263,465,713.80 is: 395,198,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,312,139.40 : 667,968,209.10 = 263,465,713.80 : x
  2. Step 2: Convert to fraction form
    445,312,139.40/667,968,209.10 = 263,465,713.80/x
  3. Step 3: Cross multiply
    445,312,139.40x = 667,968,209.10 × 263,465,713.80
  4. Step 4: Simplify right side
    445,312,139.40x = 175,986,721,006,239,168
  5. Step 5: Solve for x
    x = 175,986,721,006,239,168/445,312,139.40
  6. Step 6: Final answer
    x = 395,198,570.70

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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.