Home / 20,220,652.80-30,330,979.20-15,181,804.80

Finding the Fourth Proportional to 20,220,652.80, 30,330,979.20 and 15,181,804.80

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Solution

The fourth proportional to 20,220,652.80, 30,330,979.20 and 15,181,804.80 is: 22,772,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,652.80 : 30,330,979.20 = 15,181,804.80 : x
  2. Step 2: Convert to fraction form
    20,220,652.80/30,330,979.20 = 15,181,804.80/x
  3. Step 3: Cross multiply
    20,220,652.80x = 30,330,979.20 × 15,181,804.80
  4. Step 4: Simplify right side
    20,220,652.80x = 460,479,005,607,260.19
  5. Step 5: Solve for x
    x = 460,479,005,607,260.19/20,220,652.80
  6. Step 6: Final answer
    x = 22,772,707.20

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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.