Home / 13,361,419.60-20,042,129.40-6,642,955.60

Finding the Fourth Proportional to 13,361,419.60, 20,042,129.40 and 6,642,955.60

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Solution

The fourth proportional to 13,361,419.60, 20,042,129.40 and 6,642,955.60 is: 9,964,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,419.60 : 20,042,129.40 = 6,642,955.60 : x
  2. Step 2: Convert to fraction form
    13,361,419.60/20,042,129.40 = 6,642,955.60/x
  3. Step 3: Cross multiply
    13,361,419.60x = 20,042,129.40 × 6,642,955.60
  4. Step 4: Simplify right side
    13,361,419.60x = 133,138,975,733,654.62
  5. Step 5: Solve for x
    x = 133,138,975,733,654.62/13,361,419.60
  6. Step 6: Final answer
    x = 9,964,433.40

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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.