Home / 81,669,723.12-122,516,759.52-29,143,303.20

Finding the Fourth Proportional to 81,669,723.12, 122,516,759.52 and 29,143,303.20

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Solution

The fourth proportional to 81,669,723.12, 122,516,759.52 and 29,143,303.20 is: 43,719,299.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,669,723.12 : 122,516,759.52 = 29,143,303.20 : x
  2. Step 2: Convert to fraction form
    81,669,723.12/122,516,759.52 = 29,143,303.20/x
  3. Step 3: Cross multiply
    81,669,723.12x = 122,516,759.52 × 29,143,303.20
  4. Step 4: Simplify right side
    81,669,723.12x = 3,570,543,069,772,846.50
  5. Step 5: Solve for x
    x = 3,570,543,069,772,846.50/81,669,723.12
  6. Step 6: Final answer
    x = 43,719,299.31

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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.