Home / 128,952,246.90-193,507,672.30-51,215,550.60

Finding the Fourth Proportional to 128,952,246.90, 193,507,672.30 and 51,215,550.60

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Solution

The fourth proportional to 128,952,246.90, 193,507,672.30 and 51,215,550.60 is: 76,854,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,952,246.90 : 193,507,672.30 = 51,215,550.60 : x
  2. Step 2: Convert to fraction form
    128,952,246.90/193,507,672.30 = 51,215,550.60/x
  3. Step 3: Cross multiply
    128,952,246.90x = 193,507,672.30 × 51,215,550.60
  4. Step 4: Simplify right side
    128,952,246.90x = 9,910,601,982,168,870
  5. Step 5: Solve for x
    x = 9,910,601,982,168,870/128,952,246.90
  6. Step 6: Final answer
    x = 76,854,822.00

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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.