Home / 318,087,389.80-477,131,084.70-236,458,052.20

Finding the Fourth Proportional to 318,087,389.80, 477,131,084.70 and 236,458,052.20

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Solution

The fourth proportional to 318,087,389.80, 477,131,084.70 and 236,458,052.20 is: 354,687,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,087,389.80 : 477,131,084.70 = 236,458,052.20 : x
  2. Step 2: Convert to fraction form
    318,087,389.80/477,131,084.70 = 236,458,052.20/x
  3. Step 3: Cross multiply
    318,087,389.80x = 477,131,084.70 × 236,458,052.20
  4. Step 4: Simplify right side
    318,087,389.80x = 112,821,486,932,235,216
  5. Step 5: Solve for x
    x = 112,821,486,932,235,216/318,087,389.80
  6. Step 6: Final answer
    x = 354,687,078.30

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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.