Home / 12,387,526.40-18,581,289.60-11,430,932.60

Finding the Fourth Proportional to 12,387,526.40, 18,581,289.60 and 11,430,932.60

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Solution

The fourth proportional to 12,387,526.40, 18,581,289.60 and 11,430,932.60 is: 17,146,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,526.40 : 18,581,289.60 = 11,430,932.60 : x
  2. Step 2: Convert to fraction form
    12,387,526.40/18,581,289.60 = 11,430,932.60/x
  3. Step 3: Cross multiply
    12,387,526.40x = 18,581,289.60 × 11,430,932.60
  4. Step 4: Simplify right side
    12,387,526.40x = 212,401,469,038,680.97
  5. Step 5: Solve for x
    x = 212,401,469,038,680.97/12,387,526.40
  6. Step 6: Final answer
    x = 17,146,398.90

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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.