Home / 22,128,385.60-33,192,578.40-20,782,068.40

Finding the Fourth Proportional to 22,128,385.60, 33,192,578.40 and 20,782,068.40

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Solution

The fourth proportional to 22,128,385.60, 33,192,578.40 and 20,782,068.40 is: 31,173,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128,385.60 : 33,192,578.40 = 20,782,068.40 : x
  2. Step 2: Convert to fraction form
    22,128,385.60/33,192,578.40 = 20,782,068.40/x
  3. Step 3: Cross multiply
    22,128,385.60x = 33,192,578.40 × 20,782,068.40
  4. Step 4: Simplify right side
    22,128,385.60x = 689,810,434,681,162.50
  5. Step 5: Solve for x
    x = 689,810,434,681,162.50/22,128,385.60
  6. Step 6: Final answer
    x = 31,173,102.60

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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.