Home / 103,491,106.40-155,236,659.60-30,719,118.80

Finding the Fourth Proportional to 103,491,106.40, 155,236,659.60 and 30,719,118.80

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Solution

The fourth proportional to 103,491,106.40, 155,236,659.60 and 30,719,118.80 is: 46,078,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,491,106.40 : 155,236,659.60 = 30,719,118.80 : x
  2. Step 2: Convert to fraction form
    103,491,106.40/155,236,659.60 = 30,719,118.80/x
  3. Step 3: Cross multiply
    103,491,106.40x = 155,236,659.60 × 30,719,118.80
  4. Step 4: Simplify right side
    103,491,106.40x = 4,768,733,388,367,560
  5. Step 5: Solve for x
    x = 4,768,733,388,367,560/103,491,106.40
  6. Step 6: Final answer
    x = 46,078,678.20

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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.