Home / 118,911,378.20-178,367,067.30-100,771,525.40

Finding the Fourth Proportional to 118,911,378.20, 178,367,067.30 and 100,771,525.40

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Solution

The fourth proportional to 118,911,378.20, 178,367,067.30 and 100,771,525.40 is: 151,157,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,911,378.20 : 178,367,067.30 = 100,771,525.40 : x
  2. Step 2: Convert to fraction form
    118,911,378.20/178,367,067.30 = 100,771,525.40/x
  3. Step 3: Cross multiply
    118,911,378.20x = 178,367,067.30 × 100,771,525.40
  4. Step 4: Simplify right side
    118,911,378.20x = 17,974,321,452,945,462
  5. Step 5: Solve for x
    x = 17,974,321,452,945,462/118,911,378.20
  6. Step 6: Final answer
    x = 151,157,288.10

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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.