Home / 18,871,063.16-28,269,601.40-9,779,124.84

Finding the Fourth Proportional to 18,871,063.16, 28,269,601.40 and 9,779,124.84

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Solution

The fourth proportional to 18,871,063.16, 28,269,601.40 and 9,779,124.84 is: 14,649,517.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,063.16 : 28,269,601.40 = 9,779,124.84 : x
  2. Step 2: Convert to fraction form
    18,871,063.16/28,269,601.40 = 9,779,124.84/x
  3. Step 3: Cross multiply
    18,871,063.16x = 28,269,601.40 × 9,779,124.84
  4. Step 4: Simplify right side
    18,871,063.16x = 276,451,961,126,290.78
  5. Step 5: Solve for x
    x = 276,451,961,126,290.78/18,871,063.16
  6. Step 6: Final answer
    x = 14,649,517.03

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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.