Home / 107,767,856.30-161,753,983.47-66,703,078.07

Finding the Fourth Proportional to 107,767,856.30, 161,753,983.47 and 66,703,078.07

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Solution

The fourth proportional to 107,767,856.30, 161,753,983.47 and 66,703,078.07 is: 100,117,873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,767,856.30 : 161,753,983.47 = 66,703,078.07 : x
  2. Step 2: Convert to fraction form
    107,767,856.30/161,753,983.47 = 66,703,078.07/x
  3. Step 3: Cross multiply
    107,767,856.30x = 161,753,983.47 × 66,703,078.07
  4. Step 4: Simplify right side
    107,767,856.30x = 10,789,488,586,724,130
  5. Step 5: Solve for x
    x = 10,789,488,586,724,130/107,767,856.30
  6. Step 6: Final answer
    x = 100,117,873.33

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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.