Home / 138,744,502.45-208,048,652.38-68,633,725.48

Finding the Fourth Proportional to 138,744,502.45, 208,048,652.38 and 68,633,725.48

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Solution

The fourth proportional to 138,744,502.45, 208,048,652.38 and 68,633,725.48 is: 102,916,900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,744,502.45 : 208,048,652.38 = 68,633,725.48 : x
  2. Step 2: Convert to fraction form
    138,744,502.45/208,048,652.38 = 68,633,725.48/x
  3. Step 3: Cross multiply
    138,744,502.45x = 208,048,652.38 × 68,633,725.48
  4. Step 4: Simplify right side
    138,744,502.45x = 14,279,154,093,498,540
  5. Step 5: Solve for x
    x = 14,279,154,093,498,540/138,744,502.45
  6. Step 6: Final answer
    x = 102,916,900.07

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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.