Home / 54,282,664.20-81,414,665.10-20,186,459.40

Finding the Fourth Proportional to 54,282,664.20, 81,414,665.10 and 20,186,459.40

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Solution

The fourth proportional to 54,282,664.20, 81,414,665.10 and 20,186,459.40 is: 30,276,219.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,282,664.20 : 81,414,665.10 = 20,186,459.40 : x
  2. Step 2: Convert to fraction form
    54,282,664.20/81,414,665.10 = 20,186,459.40/x
  3. Step 3: Cross multiply
    54,282,664.20x = 81,414,665.10 × 20,186,459.40
  4. Step 4: Simplify right side
    54,282,664.20x = 1,643,473,831,605,746.75
  5. Step 5: Solve for x
    x = 1,643,473,831,605,746.75/54,282,664.20
  6. Step 6: Final answer
    x = 30,276,219.04

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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.