Home / 54,693,727.20-81,989,269.20-20,637,957.60

Finding the Fourth Proportional to 54,693,727.20, 81,989,269.20 and 20,637,957.60

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Solution

The fourth proportional to 54,693,727.20, 81,989,269.20 and 20,637,957.60 is: 30,937,570.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,693,727.20 : 81,989,269.20 = 20,637,957.60 : x
  2. Step 2: Convert to fraction form
    54,693,727.20/81,989,269.20 = 20,637,957.60/x
  3. Step 3: Cross multiply
    54,693,727.20x = 81,989,269.20 × 20,637,957.60
  4. Step 4: Simplify right side
    54,693,727.20x = 1,692,091,061,404,586
  5. Step 5: Solve for x
    x = 1,692,091,061,404,586/54,693,727.20
  6. Step 6: Final answer
    x = 30,937,570.87

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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.