Home / 120,881,296.17-166,811,322.11-65,875,971.69

Finding the Fourth Proportional to 120,881,296.17, 166,811,322.11 and 65,875,971.69

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Solution

The fourth proportional to 120,881,296.17, 166,811,322.11 and 65,875,971.69 is: 90,906,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,881,296.17 : 166,811,322.11 = 65,875,971.69 : x
  2. Step 2: Convert to fraction form
    120,881,296.17/166,811,322.11 = 65,875,971.69/x
  3. Step 3: Cross multiply
    120,881,296.17x = 166,811,322.11 × 65,875,971.69
  4. Step 4: Simplify right side
    120,881,296.17x = 10,988,857,932,560,450
  5. Step 5: Solve for x
    x = 10,988,857,932,560,450/120,881,296.17
  6. Step 6: Final answer
    x = 90,906,188.80

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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.