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Finding the Fourth Proportional to 55,876,912.40, 83,911,013.40 and 30,367,744.40

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Solution

The fourth proportional to 55,876,912.40, 83,911,013.40 and 30,367,744.40 is: 45,603,597.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,876,912.40 : 83,911,013.40 = 30,367,744.40 : x
  2. Step 2: Convert to fraction form
    55,876,912.40/83,911,013.40 = 30,367,744.40/x
  3. Step 3: Cross multiply
    55,876,912.40x = 83,911,013.40 × 30,367,744.40
  4. Step 4: Simplify right side
    55,876,912.40x = 2,548,188,207,276,175
  5. Step 5: Solve for x
    x = 2,548,188,207,276,175/55,876,912.40
  6. Step 6: Final answer
    x = 45,603,597.23

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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.