Home / 129,277,405.20-193,916,107.80-52,655,422.80

Finding the Fourth Proportional to 129,277,405.20, 193,916,107.80 and 52,655,422.80

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Solution

The fourth proportional to 129,277,405.20, 193,916,107.80 and 52,655,422.80 is: 78,983,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,277,405.20 : 193,916,107.80 = 52,655,422.80 : x
  2. Step 2: Convert to fraction form
    129,277,405.20/193,916,107.80 = 52,655,422.80/x
  3. Step 3: Cross multiply
    129,277,405.20x = 193,916,107.80 × 52,655,422.80
  4. Step 4: Simplify right side
    129,277,405.20x = 10,210,734,643,939,378
  5. Step 5: Solve for x
    x = 10,210,734,643,939,378/129,277,405.20
  6. Step 6: Final answer
    x = 78,983,134.20

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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.