Home / 145,967,788.78-201,436,082.34-78,986,747.56

Finding the Fourth Proportional to 145,967,788.78, 201,436,082.34 and 78,986,747.56

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Solution

The fourth proportional to 145,967,788.78, 201,436,082.34 and 78,986,747.56 is: 109,002,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,967,788.78 : 201,436,082.34 = 78,986,747.56 : x
  2. Step 2: Convert to fraction form
    145,967,788.78/201,436,082.34 = 78,986,747.56/x
  3. Step 3: Cross multiply
    145,967,788.78x = 201,436,082.34 × 78,986,747.56
  4. Step 4: Simplify right side
    145,967,788.78x = 15,910,780,985,264,954
  5. Step 5: Solve for x
    x = 15,910,780,985,264,954/145,967,788.78
  6. Step 6: Final answer
    x = 109,002,000.50

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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.