Home / 10,921,843.80-16,351,272.90-6,670,315.80

Finding the Fourth Proportional to 10,921,843.80, 16,351,272.90 and 6,670,315.80

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Solution

The fourth proportional to 10,921,843.80, 16,351,272.90 and 6,670,315.80 is: 9,986,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,843.80 : 16,351,272.90 = 6,670,315.80 : x
  2. Step 2: Convert to fraction form
    10,921,843.80/16,351,272.90 = 6,670,315.80/x
  3. Step 3: Cross multiply
    10,921,843.80x = 16,351,272.90 × 6,670,315.80
  4. Step 4: Simplify right side
    10,921,843.80x = 109,068,153,974,981.81
  5. Step 5: Solve for x
    x = 109,068,153,974,981.81/10,921,843.80
  6. Step 6: Final answer
    x = 9,986,240.05

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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.