Home / 29,085,021.20-43,627,122.20-13,128,643.60

Finding the Fourth Proportional to 29,085,021.20, 43,627,122.20 and 13,128,643.60

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Solution

The fourth proportional to 29,085,021.20, 43,627,122.20 and 13,128,643.60 is: 19,692,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,085,021.20 : 43,627,122.20 = 13,128,643.60 : x
  2. Step 2: Convert to fraction form
    29,085,021.20/43,627,122.20 = 13,128,643.60/x
  3. Step 3: Cross multiply
    29,085,021.20x = 43,627,122.20 × 13,128,643.60
  4. Step 4: Simplify right side
    29,085,021.20x = 572,764,938,657,448
  5. Step 5: Solve for x
    x = 572,764,938,657,448/29,085,021.20
  6. Step 6: Final answer
    x = 19,692,780.51

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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.