Home / 18,769,458.76-28,154,281.86-6,638,933.38

Finding the Fourth Proportional to 18,769,458.76, 28,154,281.86 and 6,638,933.38

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Solution

The fourth proportional to 18,769,458.76, 28,154,281.86 and 6,638,933.38 is: 9,958,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769,458.76 : 28,154,281.86 = 6,638,933.38 : x
  2. Step 2: Convert to fraction form
    18,769,458.76/28,154,281.86 = 6,638,933.38/x
  3. Step 3: Cross multiply
    18,769,458.76x = 28,154,281.86 × 6,638,933.38
  4. Step 4: Simplify right side
    18,769,458.76x = 186,914,401,630,282.47
  5. Step 5: Solve for x
    x = 186,914,401,630,282.47/18,769,458.76
  6. Step 6: Final answer
    x = 9,958,433.22

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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.