Home / 145,309,604.35-200,528,189.73-79,231,191.07

Finding the Fourth Proportional to 145,309,604.35, 200,528,189.73 and 79,231,191.07

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Solution

The fourth proportional to 145,309,604.35, 200,528,189.73 and 79,231,191.07 is: 109,339,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,309,604.35 : 200,528,189.73 = 79,231,191.07 : x
  2. Step 2: Convert to fraction form
    145,309,604.35/200,528,189.73 = 79,231,191.07/x
  3. Step 3: Cross multiply
    145,309,604.35x = 200,528,189.73 × 79,231,191.07
  4. Step 4: Simplify right side
    145,309,604.35x = 15,888,087,315,418,840
  5. Step 5: Solve for x
    x = 15,888,087,315,418,840/145,309,604.35
  6. Step 6: Final answer
    x = 109,339,553.89

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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.