Home / 15,784,811.91-21,624,830.45-15,194,661.18

Finding the Fourth Proportional to 15,784,811.91, 21,624,830.45 and 15,194,661.18

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Solution

The fourth proportional to 15,784,811.91, 21,624,830.45 and 15,194,661.18 is: 20,816,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,811.91 : 21,624,830.45 = 15,194,661.18 : x
  2. Step 2: Convert to fraction form
    15,784,811.91/21,624,830.45 = 15,194,661.18/x
  3. Step 3: Cross multiply
    15,784,811.91x = 21,624,830.45 × 15,194,661.18
  4. Step 4: Simplify right side
    15,784,811.91x = 328,581,971,686,723.62
  5. Step 5: Solve for x
    x = 328,581,971,686,723.62/15,784,811.91
  6. Step 6: Final answer
    x = 20,816,337.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.