Home / 81,145,199.24-111,945,186.96-53,681,378.12

Finding the Fourth Proportional to 81,145,199.24, 111,945,186.96 and 53,681,378.12

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Solution

The fourth proportional to 81,145,199.24, 111,945,186.96 and 53,681,378.12 is: 74,057,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,145,199.24 : 111,945,186.96 = 53,681,378.12 : x
  2. Step 2: Convert to fraction form
    81,145,199.24/111,945,186.96 = 53,681,378.12/x
  3. Step 3: Cross multiply
    81,145,199.24x = 111,945,186.96 × 53,681,378.12
  4. Step 4: Simplify right side
    81,145,199.24x = 6,009,371,909,913,853
  5. Step 5: Solve for x
    x = 6,009,371,909,913,853/81,145,199.24
  6. Step 6: Final answer
    x = 74,057,023.29

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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.