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Finding the Fourth Proportional to 54,368,101.80, 81,552,152.70 and 30,181,631.40

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Solution

The fourth proportional to 54,368,101.80, 81,552,152.70 and 30,181,631.40 is: 45,272,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,368,101.80 : 81,552,152.70 = 30,181,631.40 : x
  2. Step 2: Convert to fraction form
    54,368,101.80/81,552,152.70 = 30,181,631.40/x
  3. Step 3: Cross multiply
    54,368,101.80x = 81,552,152.70 × 30,181,631.40
  4. Step 4: Simplify right side
    54,368,101.80x = 2,461,377,012,667,914.50
  5. Step 5: Solve for x
    x = 2,461,377,012,667,914.50/54,368,101.80
  6. Step 6: Final answer
    x = 45,272,447.10

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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.