Home / 343,326,200.80-514,989,301.20-198,207,378.40

Finding the Fourth Proportional to 343,326,200.80, 514,989,301.20 and 198,207,378.40

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Solution

The fourth proportional to 343,326,200.80, 514,989,301.20 and 198,207,378.40 is: 297,311,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,326,200.80 : 514,989,301.20 = 198,207,378.40 : x
  2. Step 2: Convert to fraction form
    343,326,200.80/514,989,301.20 = 198,207,378.40/x
  3. Step 3: Cross multiply
    343,326,200.80x = 514,989,301.20 × 198,207,378.40
  4. Step 4: Simplify right side
    343,326,200.80x = 102,074,679,294,899,968
  5. Step 5: Solve for x
    x = 102,074,679,294,899,968/343,326,200.80
  6. Step 6: Final answer
    x = 297,311,067.60

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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.