Home / 81,667,055.90-122,500,583.85-63,172,909.10

Finding the Fourth Proportional to 81,667,055.90, 122,500,583.85 and 63,172,909.10

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Solution

The fourth proportional to 81,667,055.90, 122,500,583.85 and 63,172,909.10 is: 94,759,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,667,055.90 : 122,500,583.85 = 63,172,909.10 : x
  2. Step 2: Convert to fraction form
    81,667,055.90/122,500,583.85 = 63,172,909.10/x
  3. Step 3: Cross multiply
    81,667,055.90x = 122,500,583.85 × 63,172,909.10
  4. Step 4: Simplify right side
    81,667,055.90x = 7,738,718,248,252,978
  5. Step 5: Solve for x
    x = 7,738,718,248,252,978/81,667,055.90
  6. Step 6: Final answer
    x = 94,759,363.65

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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.