Home / 28,782,781.76-39,725,152.80-17,180,943.68

Finding the Fourth Proportional to 28,782,781.76, 39,725,152.80 and 17,180,943.68

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Solution

The fourth proportional to 28,782,781.76, 39,725,152.80 and 17,180,943.68 is: 23,712,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782,781.76 : 39,725,152.80 = 17,180,943.68 : x
  2. Step 2: Convert to fraction form
    28,782,781.76/39,725,152.80 = 17,180,943.68/x
  3. Step 3: Cross multiply
    28,782,781.76x = 39,725,152.80 × 17,180,943.68
  4. Step 4: Simplify right side
    28,782,781.76x = 682,515,612,936,194.25
  5. Step 5: Solve for x
    x = 682,515,612,936,194.25/28,782,781.76
  6. Step 6: Final answer
    x = 23,712,635.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.