Home / 18,870,137.30-28,305,205.95-18,551,272.70

Finding the Fourth Proportional to 18,870,137.30, 28,305,205.95 and 18,551,272.70

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Solution

The fourth proportional to 18,870,137.30, 28,305,205.95 and 18,551,272.70 is: 27,826,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870,137.30 : 28,305,205.95 = 18,551,272.70 : x
  2. Step 2: Convert to fraction form
    18,870,137.30/28,305,205.95 = 18,551,272.70/x
  3. Step 3: Cross multiply
    18,870,137.30x = 28,305,205.95 × 18,551,272.70
  4. Step 4: Simplify right side
    18,870,137.30x = 525,097,594,408,112.50
  5. Step 5: Solve for x
    x = 525,097,594,408,112.50/18,870,137.30
  6. Step 6: Final answer
    x = 27,826,909.05

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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.