Home / 18,756,220.71-28,130,394.45-5,289,899.43

Finding the Fourth Proportional to 18,756,220.71, 28,130,394.45 and 5,289,899.43

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Solution

The fourth proportional to 18,756,220.71, 28,130,394.45 and 5,289,899.43 is: 7,933,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,220.71 : 28,130,394.45 = 5,289,899.43 : x
  2. Step 2: Convert to fraction form
    18,756,220.71/28,130,394.45 = 5,289,899.43/x
  3. Step 3: Cross multiply
    18,756,220.71x = 28,130,394.45 × 5,289,899.43
  4. Step 4: Simplify right side
    18,756,220.71x = 148,806,957,566,730.16
  5. Step 5: Solve for x
    x = 148,806,957,566,730.16/18,756,220.71
  6. Step 6: Final answer
    x = 7,933,738.88

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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.