Home / 18,871,062.66-28,269,600.65-9,779,124.33

Finding the Fourth Proportional to 18,871,062.66, 28,269,600.65 and 9,779,124.33

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Solution

The fourth proportional to 18,871,062.66, 28,269,600.65 and 9,779,124.33 is: 14,649,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,062.66 : 28,269,600.65 = 9,779,124.33 : x
  2. Step 2: Convert to fraction form
    18,871,062.66/28,269,600.65 = 9,779,124.33/x
  3. Step 3: Cross multiply
    18,871,062.66x = 28,269,600.65 × 9,779,124.33
  4. Step 4: Simplify right side
    18,871,062.66x = 276,451,939,646,257.62
  5. Step 5: Solve for x
    x = 276,451,939,646,257.62/18,871,062.66
  6. Step 6: Final answer
    x = 14,649,516.28

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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.