Home / 18,756,221.65-28,130,395.87-5,289,900.37

Finding the Fourth Proportional to 18,756,221.65, 28,130,395.87 and 5,289,900.37

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Solution

The fourth proportional to 18,756,221.65, 28,130,395.87 and 5,289,900.37 is: 7,933,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,221.65 : 28,130,395.87 = 5,289,900.37 : x
  2. Step 2: Convert to fraction form
    18,756,221.65/28,130,395.87 = 5,289,900.37/x
  3. Step 3: Cross multiply
    18,756,221.65x = 28,130,395.87 × 5,289,900.37
  4. Step 4: Simplify right side
    18,756,221.65x = 148,806,991,457,245.84
  5. Step 5: Solve for x
    x = 148,806,991,457,245.84/18,756,221.65
  6. Step 6: Final answer
    x = 7,933,740.29

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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.