Home / 10,920,876.80-16,381,315.20-6,669,348.80

Finding the Fourth Proportional to 10,920,876.80, 16,381,315.20 and 6,669,348.80

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Solution

The fourth proportional to 10,920,876.80, 16,381,315.20 and 6,669,348.80 is: 10,004,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920,876.80 : 16,381,315.20 = 6,669,348.80 : x
  2. Step 2: Convert to fraction form
    10,920,876.80/16,381,315.20 = 6,669,348.80/x
  3. Step 3: Cross multiply
    10,920,876.80x = 16,381,315.20 × 6,669,348.80
  4. Step 4: Simplify right side
    10,920,876.80x = 109,252,704,871,541.75
  5. Step 5: Solve for x
    x = 109,252,704,871,541.75/10,920,876.80
  6. Step 6: Final answer
    x = 10,004,023.20

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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.