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Finding the Fourth Proportional to 270,662,433.70, 405,993,650.55 and 66,187,848.10

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Solution

The fourth proportional to 270,662,433.70, 405,993,650.55 and 66,187,848.10 is: 99,281,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,662,433.70 : 405,993,650.55 = 66,187,848.10 : x
  2. Step 2: Convert to fraction form
    270,662,433.70/405,993,650.55 = 66,187,848.10/x
  3. Step 3: Cross multiply
    270,662,433.70x = 405,993,650.55 × 66,187,848.10
  4. Step 4: Simplify right side
    270,662,433.70x = 26,871,846,072,167,884
  5. Step 5: Solve for x
    x = 26,871,846,072,167,884/270,662,433.70
  6. Step 6: Final answer
    x = 99,281,772.15

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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.