Home / 20,505,622.95-30,758,434.43-20,186,758.35

Finding the Fourth Proportional to 20,505,622.95, 30,758,434.43 and 20,186,758.35

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Solution

The fourth proportional to 20,505,622.95, 30,758,434.43 and 20,186,758.35 is: 30,280,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505,622.95 : 30,758,434.43 = 20,186,758.35 : x
  2. Step 2: Convert to fraction form
    20,505,622.95/30,758,434.43 = 20,186,758.35/x
  3. Step 3: Cross multiply
    20,505,622.95x = 30,758,434.43 × 20,186,758.35
  4. Step 4: Simplify right side
    20,505,622.95x = 620,913,082,961,796.25
  5. Step 5: Solve for x
    x = 620,913,082,961,796.25/20,505,622.95
  6. Step 6: Final answer
    x = 30,280,137.53

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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.