Home / 66,203,126.52-99,313,366.72-21,872,684.42

Finding the Fourth Proportional to 66,203,126.52, 99,313,366.72 and 21,872,684.42

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Solution

The fourth proportional to 66,203,126.52, 99,313,366.72 and 21,872,684.42 is: 32,811,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203,126.52 : 99,313,366.72 = 21,872,684.42 : x
  2. Step 2: Convert to fraction form
    66,203,126.52/99,313,366.72 = 21,872,684.42/x
  3. Step 3: Cross multiply
    66,203,126.52x = 99,313,366.72 × 21,872,684.42
  4. Step 4: Simplify right side
    66,203,126.52x = 2,172,249,928,954,290.75
  5. Step 5: Solve for x
    x = 2,172,249,928,954,290.75/66,203,126.52
  6. Step 6: Final answer
    x = 32,811,893.38

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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.