Home / 20,712,194.13-28,595,088.81-18,414,007.05

Finding the Fourth Proportional to 20,712,194.13, 28,595,088.81 and 18,414,007.05

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Solution

The fourth proportional to 20,712,194.13, 28,595,088.81 and 18,414,007.05 is: 25,422,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,194.13 : 28,595,088.81 = 18,414,007.05 : x
  2. Step 2: Convert to fraction form
    20,712,194.13/28,595,088.81 = 18,414,007.05/x
  3. Step 3: Cross multiply
    20,712,194.13x = 28,595,088.81 × 18,414,007.05
  4. Step 4: Simplify right side
    20,712,194.13x = 526,550,166,942,716.12
  5. Step 5: Solve for x
    x = 526,550,166,942,716.12/20,712,194.13
  6. Step 6: Final answer
    x = 25,422,230.19

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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.