Home / 20,433,275.37-28,198,139.99-11,140,769.48

Finding the Fourth Proportional to 20,433,275.37, 28,198,139.99 and 11,140,769.48

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Solution

The fourth proportional to 20,433,275.37, 28,198,139.99 and 11,140,769.48 is: 15,374,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433,275.37 : 28,198,139.99 = 11,140,769.48 : x
  2. Step 2: Convert to fraction form
    20,433,275.37/28,198,139.99 = 11,140,769.48/x
  3. Step 3: Cross multiply
    20,433,275.37x = 28,198,139.99 × 11,140,769.48
  4. Step 4: Simplify right side
    20,433,275.37x = 314,148,977,393,359.50
  5. Step 5: Solve for x
    x = 314,148,977,393,359.50/20,433,275.37
  6. Step 6: Final answer
    x = 15,374,381.82

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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.