Home / 66,474,992.90-99,721,820.55-21,032,048.90

Finding the Fourth Proportional to 66,474,992.90, 99,721,820.55 and 21,032,048.90

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Solution

The fourth proportional to 66,474,992.90, 99,721,820.55 and 21,032,048.90 is: 31,551,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474,992.90 : 99,721,820.55 = 21,032,048.90 : x
  2. Step 2: Convert to fraction form
    66,474,992.90/99,721,820.55 = 21,032,048.90/x
  3. Step 3: Cross multiply
    66,474,992.90x = 99,721,820.55 × 21,032,048.90
  4. Step 4: Simplify right side
    66,474,992.90x = 2,097,354,206,204,624.75
  5. Step 5: Solve for x
    x = 2,097,354,206,204,624.75/66,474,992.90
  6. Step 6: Final answer
    x = 31,551,025.65

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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.