Home / 15,162,684-20,924,465.04-8,287,212.84

Finding the Fourth Proportional to 15,162,684, 20,924,465.04 and 8,287,212.84

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Solution

The fourth proportional to 15,162,684, 20,924,465.04 and 8,287,212.84 is: 11,436,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162,684 : 20,924,465.04 = 8,287,212.84 : x
  2. Step 2: Convert to fraction form
    15,162,684/20,924,465.04 = 8,287,212.84/x
  3. Step 3: Cross multiply
    15,162,684x = 20,924,465.04 × 8,287,212.84
  4. Step 4: Simplify right side
    15,162,684x = 173,405,495,349,619.09
  5. Step 5: Solve for x
    x = 173,405,495,349,619.09/15,162,684
  6. Step 6: Final answer
    x = 11,436,332.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.