Home / 122,191,938.38-168,623,689.43-66,437,358.05

Finding the Fourth Proportional to 122,191,938.38, 168,623,689.43 and 66,437,358.05

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Solution

The fourth proportional to 122,191,938.38, 168,623,689.43 and 66,437,358.05 is: 91,682,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,191,938.38 : 168,623,689.43 = 66,437,358.05 : x
  2. Step 2: Convert to fraction form
    122,191,938.38/168,623,689.43 = 66,437,358.05/x
  3. Step 3: Cross multiply
    122,191,938.38x = 168,623,689.43 × 66,437,358.05
  4. Step 4: Simplify right side
    122,191,938.38x = 11,202,912,429,197,606
  5. Step 5: Solve for x
    x = 11,202,912,429,197,606/122,191,938.38
  6. Step 6: Final answer
    x = 91,682,909.51

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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.