Home / 18,756,220.30-28,130,393.79-5,289,899.02

Finding the Fourth Proportional to 18,756,220.30, 28,130,393.79 and 5,289,899.02

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Solution

The fourth proportional to 18,756,220.30, 28,130,393.79 and 5,289,899.02 is: 7,933,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,220.30 : 28,130,393.79 = 5,289,899.02 : x
  2. Step 2: Convert to fraction form
    18,756,220.30/28,130,393.79 = 5,289,899.02/x
  3. Step 3: Cross multiply
    18,756,220.30x = 28,130,393.79 × 5,289,899.02
  4. Step 4: Simplify right side
    18,756,220.30x = 148,806,942,541,935.06
  5. Step 5: Solve for x
    x = 148,806,942,541,935.06/18,756,220.30
  6. Step 6: Final answer
    x = 7,933,738.26

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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.