Home / 28,184,423.45-42,283,351.89-9,990,208.71

Finding the Fourth Proportional to 28,184,423.45, 42,283,351.89 and 9,990,208.71

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Solution

The fourth proportional to 28,184,423.45, 42,283,351.89 and 9,990,208.71 is: 14,987,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184,423.45 : 42,283,351.89 = 9,990,208.71 : x
  2. Step 2: Convert to fraction form
    28,184,423.45/42,283,351.89 = 9,990,208.71/x
  3. Step 3: Cross multiply
    28,184,423.45x = 42,283,351.89 × 9,990,208.71
  4. Step 4: Simplify right side
    28,184,423.45x = 422,419,510,339,473
  5. Step 5: Solve for x
    x = 422,419,510,339,473/28,184,423.45
  6. Step 6: Final answer
    x = 14,987,693.86

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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.