Home / 61,190,009.10-91,758,441.60-20,233,622.70

Finding the Fourth Proportional to 61,190,009.10, 91,758,441.60 and 20,233,622.70

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Solution

The fourth proportional to 61,190,009.10, 91,758,441.60 and 20,233,622.70 is: 30,341,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190,009.10 : 91,758,441.60 = 20,233,622.70 : x
  2. Step 2: Convert to fraction form
    61,190,009.10/91,758,441.60 = 20,233,622.70/x
  3. Step 3: Cross multiply
    61,190,009.10x = 91,758,441.60 × 20,233,622.70
  4. Step 4: Simplify right side
    61,190,009.10x = 1,856,605,686,874,384.25
  5. Step 5: Solve for x
    x = 1,856,605,686,874,384.25/61,190,009.10
  6. Step 6: Final answer
    x = 30,341,647.50

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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.