Home / 126,359,669.70-189,559,871.55-38,921,146.02

Finding the Fourth Proportional to 126,359,669.70, 189,559,871.55 and 38,921,146.02

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Solution

The fourth proportional to 126,359,669.70, 189,559,871.55 and 38,921,146.02 is: 58,387,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,359,669.70 : 189,559,871.55 = 38,921,146.02 : x
  2. Step 2: Convert to fraction form
    126,359,669.70/189,559,871.55 = 38,921,146.02/x
  3. Step 3: Cross multiply
    126,359,669.70x = 189,559,871.55 × 38,921,146.02
  4. Step 4: Simplify right side
    126,359,669.70x = 7,377,887,440,129,995
  5. Step 5: Solve for x
    x = 7,377,887,440,129,995/126,359,669.70
  6. Step 6: Final answer
    x = 58,387,992.45

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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.