Home / 345,312,860.80-517,969,291.20-343,297,321.60

Finding the Fourth Proportional to 345,312,860.80, 517,969,291.20 and 343,297,321.60

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Solution

The fourth proportional to 345,312,860.80, 517,969,291.20 and 343,297,321.60 is: 514,945,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,312,860.80 : 517,969,291.20 = 343,297,321.60 : x
  2. Step 2: Convert to fraction form
    345,312,860.80/517,969,291.20 = 343,297,321.60/x
  3. Step 3: Cross multiply
    345,312,860.80x = 517,969,291.20 × 343,297,321.60
  4. Step 4: Simplify right side
    345,312,860.80x = 177,817,470,340,010,464
  5. Step 5: Solve for x
    x = 177,817,470,340,010,464/345,312,860.80
  6. Step 6: Final answer
    x = 514,945,982.40

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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.