Home / 18,756,221.42-28,130,395.48-5,289,900.14

Finding the Fourth Proportional to 18,756,221.42, 28,130,395.48 and 5,289,900.14

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Solution

The fourth proportional to 18,756,221.42, 28,130,395.48 and 5,289,900.14 is: 7,933,739.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,221.42 : 28,130,395.48 = 5,289,900.14 : x
  2. Step 2: Convert to fraction form
    18,756,221.42/28,130,395.48 = 5,289,900.14/x
  3. Step 3: Cross multiply
    18,756,221.42x = 28,130,395.48 × 5,289,900.14
  4. Step 4: Simplify right side
    18,756,221.42x = 148,806,983,045,008.59
  5. Step 5: Solve for x
    x = 148,806,983,045,008.59/18,756,221.42
  6. Step 6: Final answer
    x = 7,933,739.94

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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.