Home / 28,627,287.20-42,926,221.20-8,429,904.80

Finding the Fourth Proportional to 28,627,287.20, 42,926,221.20 and 8,429,904.80

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Solution

The fourth proportional to 28,627,287.20, 42,926,221.20 and 8,429,904.80 is: 12,640,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627,287.20 : 42,926,221.20 = 8,429,904.80 : x
  2. Step 2: Convert to fraction form
    28,627,287.20/42,926,221.20 = 8,429,904.80/x
  3. Step 3: Cross multiply
    28,627,287.20x = 42,926,221.20 × 8,429,904.80
  4. Step 4: Simplify right side
    28,627,287.20x = 361,863,958,139,741.81
  5. Step 5: Solve for x
    x = 361,863,958,139,741.81/28,627,287.20
  6. Step 6: Final answer
    x = 12,640,525.65

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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.