Home / 18,405,387.40-27,607,821.90-8,307,992.20

Finding the Fourth Proportional to 18,405,387.40, 27,607,821.90 and 8,307,992.20

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Solution

The fourth proportional to 18,405,387.40, 27,607,821.90 and 8,307,992.20 is: 12,461,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405,387.40 : 27,607,821.90 = 8,307,992.20 : x
  2. Step 2: Convert to fraction form
    18,405,387.40/27,607,821.90 = 8,307,992.20/x
  3. Step 3: Cross multiply
    18,405,387.40x = 27,607,821.90 × 8,307,992.20
  4. Step 4: Simplify right side
    18,405,387.40x = 229,365,569,004,189.19
  5. Step 5: Solve for x
    x = 229,365,569,004,189.19/18,405,387.40
  6. Step 6: Final answer
    x = 12,461,871.30

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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.