Home / 12,696,847.48-17,522,730.12-7,191,201.72

Finding the Fourth Proportional to 12,696,847.48, 17,522,730.12 and 7,191,201.72

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Solution

The fourth proportional to 12,696,847.48, 17,522,730.12 and 7,191,201.72 is: 9,924,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696,847.48 : 17,522,730.12 = 7,191,201.72 : x
  2. Step 2: Convert to fraction form
    12,696,847.48/17,522,730.12 = 7,191,201.72/x
  3. Step 3: Cross multiply
    12,696,847.48x = 17,522,730.12 × 7,191,201.72
  4. Step 4: Simplify right side
    12,696,847.48x = 126,009,486,978,039.81
  5. Step 5: Solve for x
    x = 126,009,486,978,039.81/12,696,847.48
  6. Step 6: Final answer
    x = 9,924,470.40

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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.