Home / 18,639,367.28-25,721,499.48-10,379,855.60

Finding the Fourth Proportional to 18,639,367.28, 25,721,499.48 and 10,379,855.60

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Solution

The fourth proportional to 18,639,367.28, 25,721,499.48 and 10,379,855.60 is: 14,323,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639,367.28 : 25,721,499.48 = 10,379,855.60 : x
  2. Step 2: Convert to fraction form
    18,639,367.28/25,721,499.48 = 10,379,855.60/x
  3. Step 3: Cross multiply
    18,639,367.28x = 25,721,499.48 × 10,379,855.60
  4. Step 4: Simplify right side
    18,639,367.28x = 266,985,450,417,875.09
  5. Step 5: Solve for x
    x = 266,985,450,417,875.09/18,639,367.28
  6. Step 6: Final answer
    x = 14,323,739.99

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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.