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Finding the Fourth Proportional to 169,993,443.80, 254,990,165.70 and 54,989,611.40

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Solution

The fourth proportional to 169,993,443.80, 254,990,165.70 and 54,989,611.40 is: 82,484,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,993,443.80 : 254,990,165.70 = 54,989,611.40 : x
  2. Step 2: Convert to fraction form
    169,993,443.80/254,990,165.70 = 54,989,611.40/x
  3. Step 3: Cross multiply
    169,993,443.80x = 254,990,165.70 × 54,989,611.40
  4. Step 4: Simplify right side
    169,993,443.80x = 14,021,810,122,664,608
  5. Step 5: Solve for x
    x = 14,021,810,122,664,608/169,993,443.80
  6. Step 6: Final answer
    x = 82,484,417.10

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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.