Home / 139,164,777-208,655,026.92-66,392,789.40

Finding the Fourth Proportional to 139,164,777, 208,655,026.92 and 66,392,789.40

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Solution

The fourth proportional to 139,164,777, 208,655,026.92 and 66,392,789.40 is: 99,545,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,164,777 : 208,655,026.92 = 66,392,789.40 : x
  2. Step 2: Convert to fraction form
    139,164,777/208,655,026.92 = 66,392,789.40/x
  3. Step 3: Cross multiply
    139,164,777x = 208,655,026.92 × 66,392,789.40
  4. Step 4: Simplify right side
    139,164,777x = 13,853,189,259,550,890
  5. Step 5: Solve for x
    x = 13,853,189,259,550,890/139,164,777
  6. Step 6: Final answer
    x = 99,545,226.59

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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.