Home / 212,564,540.40-318,279,940.20-212,564,540.40

Finding the Fourth Proportional to 212,564,540.40, 318,279,940.20 and 212,564,540.40

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Solution

The fourth proportional to 212,564,540.40, 318,279,940.20 and 212,564,540.40 is: 318,279,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,564,540.40 : 318,279,940.20 = 212,564,540.40 : x
  2. Step 2: Convert to fraction form
    212,564,540.40/318,279,940.20 = 212,564,540.40/x
  3. Step 3: Cross multiply
    212,564,540.40x = 318,279,940.20 × 212,564,540.40
  4. Step 4: Simplify right side
    212,564,540.40x = 67,655,029,207,152,480
  5. Step 5: Solve for x
    x = 67,655,029,207,152,480/212,564,540.40
  6. Step 6: Final answer
    x = 318,279,940.20

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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.