Home / 10,871,711.20-16,307,566.80-4,478,672.80

Finding the Fourth Proportional to 10,871,711.20, 16,307,566.80 and 4,478,672.80

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Solution

The fourth proportional to 10,871,711.20, 16,307,566.80 and 4,478,672.80 is: 6,718,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871,711.20 : 16,307,566.80 = 4,478,672.80 : x
  2. Step 2: Convert to fraction form
    10,871,711.20/16,307,566.80 = 4,478,672.80/x
  3. Step 3: Cross multiply
    10,871,711.20x = 16,307,566.80 × 4,478,672.80
  4. Step 4: Simplify right side
    10,871,711.20x = 73,036,255,861,343.05
  5. Step 5: Solve for x
    x = 73,036,255,861,343.05/10,871,711.20
  6. Step 6: Final answer
    x = 6,718,009.20

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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.