Home / 66,475,438.90-99,722,489.55-21,032,494.90

Finding the Fourth Proportional to 66,475,438.90, 99,722,489.55 and 21,032,494.90

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Solution

The fourth proportional to 66,475,438.90, 99,722,489.55 and 21,032,494.90 is: 31,551,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475,438.90 : 99,722,489.55 = 21,032,494.90 : x
  2. Step 2: Convert to fraction form
    66,475,438.90/99,722,489.55 = 21,032,494.90/x
  3. Step 3: Cross multiply
    66,475,438.90x = 99,722,489.55 × 21,032,494.90
  4. Step 4: Simplify right side
    66,475,438.90x = 2,097,412,752,875,678
  5. Step 5: Solve for x
    x = 2,097,412,752,875,678/66,475,438.90
  6. Step 6: Final answer
    x = 31,551,694.69

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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.