Home / 38,115,825.14-52,599,798.83-20,712,128.90

Finding the Fourth Proportional to 38,115,825.14, 52,599,798.83 and 20,712,128.90

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Solution

The fourth proportional to 38,115,825.14, 52,599,798.83 and 20,712,128.90 is: 28,582,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115,825.14 : 52,599,798.83 = 20,712,128.90 : x
  2. Step 2: Convert to fraction form
    38,115,825.14/52,599,798.83 = 20,712,128.90/x
  3. Step 3: Cross multiply
    38,115,825.14x = 52,599,798.83 × 20,712,128.90
  4. Step 4: Simplify right side
    38,115,825.14x = 1,089,453,813,269,810.50
  5. Step 5: Solve for x
    x = 1,089,453,813,269,810.50/38,115,825.14
  6. Step 6: Final answer
    x = 28,582,716.21

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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.