Home / 13,428,178.80-20,148,221.16-7,036,911.60

Finding the Fourth Proportional to 13,428,178.80, 20,148,221.16 and 7,036,911.60

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Solution

The fourth proportional to 13,428,178.80, 20,148,221.16 and 7,036,911.60 is: 10,558,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,178.80 : 20,148,221.16 = 7,036,911.60 : x
  2. Step 2: Convert to fraction form
    13,428,178.80/20,148,221.16 = 7,036,911.60/x
  3. Step 3: Cross multiply
    13,428,178.80x = 20,148,221.16 × 7,036,911.60
  4. Step 4: Simplify right side
    13,428,178.80x = 141,781,251,200,169.44
  5. Step 5: Solve for x
    x = 141,781,251,200,169.44/13,428,178.80
  6. Step 6: Final answer
    x = 10,558,486.99

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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.