Home / 28,715,230.22-39,627,140.96-15,662,769.32

Finding the Fourth Proportional to 28,715,230.22, 39,627,140.96 and 15,662,769.32

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Solution

The fourth proportional to 28,715,230.22, 39,627,140.96 and 15,662,769.32 is: 21,614,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715,230.22 : 39,627,140.96 = 15,662,769.32 : x
  2. Step 2: Convert to fraction form
    28,715,230.22/39,627,140.96 = 15,662,769.32/x
  3. Step 3: Cross multiply
    28,715,230.22x = 39,627,140.96 × 15,662,769.32
  4. Step 4: Simplify right side
    28,715,230.22x = 620,670,767,805,828.12
  5. Step 5: Solve for x
    x = 620,670,767,805,828.12/28,715,230.22
  6. Step 6: Final answer
    x = 21,614,688.90

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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.