Home / 212,911,689.20-318,919,636.20-177,079,881.20

Finding the Fourth Proportional to 212,911,689.20, 318,919,636.20 and 177,079,881.20

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Solution

The fourth proportional to 212,911,689.20, 318,919,636.20 and 177,079,881.20 is: 265,247,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,911,689.20 : 318,919,636.20 = 177,079,881.20 : x
  2. Step 2: Convert to fraction form
    212,911,689.20/318,919,636.20 = 177,079,881.20/x
  3. Step 3: Cross multiply
    212,911,689.20x = 318,919,636.20 × 177,079,881.20
  4. Step 4: Simplify right side
    212,911,689.20x = 56,474,251,290,643,216
  5. Step 5: Solve for x
    x = 56,474,251,290,643,216/212,911,689.20
  6. Step 6: Final answer
    x = 265,247,302.78

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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.