Home / 212,949,041.40-319,423,562.10-140,247,912.60

Finding the Fourth Proportional to 212,949,041.40, 319,423,562.10 and 140,247,912.60

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Solution

The fourth proportional to 212,949,041.40, 319,423,562.10 and 140,247,912.60 is: 210,371,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,949,041.40 : 319,423,562.10 = 140,247,912.60 : x
  2. Step 2: Convert to fraction form
    212,949,041.40/319,423,562.10 = 140,247,912.60/x
  3. Step 3: Cross multiply
    212,949,041.40x = 319,423,562.10 × 140,247,912.60
  4. Step 4: Simplify right side
    212,949,041.40x = 44,798,487,819,781,472
  5. Step 5: Solve for x
    x = 44,798,487,819,781,472/212,949,041.40
  6. Step 6: Final answer
    x = 210,371,868.90

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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.