Home / 79,418,977.20-119,128,465.80-28,358,650.80

Finding the Fourth Proportional to 79,418,977.20, 119,128,465.80 and 28,358,650.80

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Solution

The fourth proportional to 79,418,977.20, 119,128,465.80 and 28,358,650.80 is: 42,537,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,418,977.20 : 119,128,465.80 = 28,358,650.80 : x
  2. Step 2: Convert to fraction form
    79,418,977.20/119,128,465.80 = 28,358,650.80/x
  3. Step 3: Cross multiply
    79,418,977.20x = 119,128,465.80 × 28,358,650.80
  4. Step 4: Simplify right side
    79,418,977.20x = 3,378,322,561,961,942.50
  5. Step 5: Solve for x
    x = 3,378,322,561,961,942.50/79,418,977.20
  6. Step 6: Final answer
    x = 42,537,976.20

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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.