Home / 20,386,692.37-28,133,627.11-11,219,335.03

Finding the Fourth Proportional to 20,386,692.37, 28,133,627.11 and 11,219,335.03

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Solution

The fourth proportional to 20,386,692.37, 28,133,627.11 and 11,219,335.03 is: 15,482,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,692.37 : 28,133,627.11 = 11,219,335.03 : x
  2. Step 2: Convert to fraction form
    20,386,692.37/28,133,627.11 = 11,219,335.03/x
  3. Step 3: Cross multiply
    20,386,692.37x = 28,133,627.11 × 11,219,335.03
  4. Step 4: Simplify right side
    20,386,692.37x = 315,640,588,156,180.62
  5. Step 5: Solve for x
    x = 315,640,588,156,180.62/20,386,692.37
  6. Step 6: Final answer
    x = 15,482,677.74

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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.