Home / 231,143,511.60-318,977,969.04-126,719,340.84

Finding the Fourth Proportional to 231,143,511.60, 318,977,969.04 and 126,719,340.84

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Solution

The fourth proportional to 231,143,511.60, 318,977,969.04 and 126,719,340.84 is: 174,872,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,143,511.60 : 318,977,969.04 = 126,719,340.84 : x
  2. Step 2: Convert to fraction form
    231,143,511.60/318,977,969.04 = 126,719,340.84/x
  3. Step 3: Cross multiply
    231,143,511.60x = 318,977,969.04 × 126,719,340.84
  4. Step 4: Simplify right side
    231,143,511.60x = 40,420,677,979,230,728
  5. Step 5: Solve for x
    x = 40,420,677,979,230,728/231,143,511.60
  6. Step 6: Final answer
    x = 174,872,648.16

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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.