Home / 53,638,863.20-80,458,294.80-19,561,320.80

Finding the Fourth Proportional to 53,638,863.20, 80,458,294.80 and 19,561,320.80

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Solution

The fourth proportional to 53,638,863.20, 80,458,294.80 and 19,561,320.80 is: 29,341,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,638,863.20 : 80,458,294.80 = 19,561,320.80 : x
  2. Step 2: Convert to fraction form
    53,638,863.20/80,458,294.80 = 19,561,320.80/x
  3. Step 3: Cross multiply
    53,638,863.20x = 80,458,294.80 × 19,561,320.80
  4. Step 4: Simplify right side
    53,638,863.20x = 1,573,870,515,603,771.75
  5. Step 5: Solve for x
    x = 1,573,870,515,603,771.75/53,638,863.20
  6. Step 6: Final answer
    x = 29,341,981.20

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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.