Home / 18,871,062.29-28,269,600.09-9,779,123.96

Finding the Fourth Proportional to 18,871,062.29, 28,269,600.09 and 9,779,123.96

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Solution

The fourth proportional to 18,871,062.29, 28,269,600.09 and 9,779,123.96 is: 14,649,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,062.29 : 28,269,600.09 = 9,779,123.96 : x
  2. Step 2: Convert to fraction form
    18,871,062.29/28,269,600.09 = 9,779,123.96/x
  3. Step 3: Cross multiply
    18,871,062.29x = 28,269,600.09 × 9,779,123.96
  4. Step 4: Simplify right side
    18,871,062.29x = 276,451,923,562,736.03
  5. Step 5: Solve for x
    x = 276,451,923,562,736.03/18,871,062.29
  6. Step 6: Final answer
    x = 14,649,515.72

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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.