Home / 129,088,015.20-193,632,022.80-52,413,544.80

Finding the Fourth Proportional to 129,088,015.20, 193,632,022.80 and 52,413,544.80

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Solution

The fourth proportional to 129,088,015.20, 193,632,022.80 and 52,413,544.80 is: 78,620,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,088,015.20 : 193,632,022.80 = 52,413,544.80 : x
  2. Step 2: Convert to fraction form
    129,088,015.20/193,632,022.80 = 52,413,544.80/x
  3. Step 3: Cross multiply
    129,088,015.20x = 193,632,022.80 × 52,413,544.80
  4. Step 4: Simplify right side
    129,088,015.20x = 10,148,940,701,742,422
  5. Step 5: Solve for x
    x = 10,148,940,701,742,422/129,088,015.20
  6. Step 6: Final answer
    x = 78,620,317.20

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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.