Home / 212,949,042.40-319,423,563.60-140,247,913.60

Finding the Fourth Proportional to 212,949,042.40, 319,423,563.60 and 140,247,913.60

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Solution

The fourth proportional to 212,949,042.40, 319,423,563.60 and 140,247,913.60 is: 210,371,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,949,042.40 : 319,423,563.60 = 140,247,913.60 : x
  2. Step 2: Convert to fraction form
    212,949,042.40/319,423,563.60 = 140,247,913.60/x
  3. Step 3: Cross multiply
    212,949,042.40x = 319,423,563.60 × 140,247,913.60
  4. Step 4: Simplify right side
    212,949,042.40x = 44,798,488,349,576,904
  5. Step 5: Solve for x
    x = 44,798,488,349,576,904/212,949,042.40
  6. Step 6: Final answer
    x = 210,371,870.40

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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.