Home / 49,280,785.20-67,999,928.40-28,368,775.58

Finding the Fourth Proportional to 49,280,785.20, 67,999,928.40 and 28,368,775.58

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Solution

The fourth proportional to 49,280,785.20, 67,999,928.40 and 28,368,775.58 is: 39,144,561.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,280,785.20 : 67,999,928.40 = 28,368,775.58 : x
  2. Step 2: Convert to fraction form
    49,280,785.20/67,999,928.40 = 28,368,775.58/x
  3. Step 3: Cross multiply
    49,280,785.20x = 67,999,928.40 × 28,368,775.58
  4. Step 4: Simplify right side
    49,280,785.20x = 1,929,074,708,235,668.50
  5. Step 5: Solve for x
    x = 1,929,074,708,235,668.50/49,280,785.20
  6. Step 6: Final answer
    x = 39,144,561.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.