Home / 13,765,292.40-18,996,588.54-7,885,975.44

Finding the Fourth Proportional to 13,765,292.40, 18,996,588.54 and 7,885,975.44

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Solution

The fourth proportional to 13,765,292.40, 18,996,588.54 and 7,885,975.44 is: 10,882,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765,292.40 : 18,996,588.54 = 7,885,975.44 : x
  2. Step 2: Convert to fraction form
    13,765,292.40/18,996,588.54 = 7,885,975.44/x
  3. Step 3: Cross multiply
    13,765,292.40x = 18,996,588.54 × 7,885,975.44
  4. Step 4: Simplify right side
    13,765,292.40x = 149,806,630,670,225.47
  5. Step 5: Solve for x
    x = 149,806,630,670,225.47/13,765,292.40
  6. Step 6: Final answer
    x = 10,882,923.97

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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.