Home / 28,491,210.30-42,736,815.45-12,305,879.40

Finding the Fourth Proportional to 28,491,210.30, 42,736,815.45 and 12,305,879.40

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Solution

The fourth proportional to 28,491,210.30, 42,736,815.45 and 12,305,879.40 is: 18,458,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491,210.30 : 42,736,815.45 = 12,305,879.40 : x
  2. Step 2: Convert to fraction form
    28,491,210.30/42,736,815.45 = 12,305,879.40/x
  3. Step 3: Cross multiply
    28,491,210.30x = 42,736,815.45 × 12,305,879.40
  4. Step 4: Simplify right side
    28,491,210.30x = 525,914,096,867,756.81
  5. Step 5: Solve for x
    x = 525,914,096,867,756.81/28,491,210.30
  6. Step 6: Final answer
    x = 18,458,819.10

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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.