Home / 309,238,734.11-426,348,902.05-200,290,423.82

Finding the Fourth Proportional to 309,238,734.11, 426,348,902.05 and 200,290,423.82

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Solution

The fourth proportional to 309,238,734.11, 426,348,902.05 and 200,290,423.82 is: 276,141,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,238,734.11 : 426,348,902.05 = 200,290,423.82 : x
  2. Step 2: Convert to fraction form
    309,238,734.11/426,348,902.05 = 200,290,423.82/x
  3. Step 3: Cross multiply
    309,238,734.11x = 426,348,902.05 × 200,290,423.82
  4. Step 4: Simplify right side
    309,238,734.11x = 85,393,602,284,716,512
  5. Step 5: Solve for x
    x = 85,393,602,284,716,512/309,238,734.11
  6. Step 6: Final answer
    x = 276,141,352.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.