Home / 54,459,111.40-81,688,667.10-20,376,028.60

Finding the Fourth Proportional to 54,459,111.40, 81,688,667.10 and 20,376,028.60

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Solution

The fourth proportional to 54,459,111.40, 81,688,667.10 and 20,376,028.60 is: 30,564,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,459,111.40 : 81,688,667.10 = 20,376,028.60 : x
  2. Step 2: Convert to fraction form
    54,459,111.40/81,688,667.10 = 20,376,028.60/x
  3. Step 3: Cross multiply
    54,459,111.40x = 81,688,667.10 × 20,376,028.60
  4. Step 4: Simplify right side
    54,459,111.40x = 1,664,490,617,125,479
  5. Step 5: Solve for x
    x = 1,664,490,617,125,479/54,459,111.40
  6. Step 6: Final answer
    x = 30,564,042.90

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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.