Home / 20,562,382.68-28,388,990.28-13,232,953.50

Finding the Fourth Proportional to 20,562,382.68, 28,388,990.28 and 13,232,953.50

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Solution

The fourth proportional to 20,562,382.68, 28,388,990.28 and 13,232,953.50 is: 18,269,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562,382.68 : 28,388,990.28 = 13,232,953.50 : x
  2. Step 2: Convert to fraction form
    20,562,382.68/28,388,990.28 = 13,232,953.50/x
  3. Step 3: Cross multiply
    20,562,382.68x = 28,388,990.28 × 13,232,953.50
  4. Step 4: Simplify right side
    20,562,382.68x = 375,670,188,287,192
  5. Step 5: Solve for x
    x = 375,670,188,287,192/20,562,382.68
  6. Step 6: Final answer
    x = 18,269,779.05

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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.