Home / 60,721,179.20-91,081,697.42-19,780,551.36

Finding the Fourth Proportional to 60,721,179.20, 91,081,697.42 and 19,780,551.36

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Solution

The fourth proportional to 60,721,179.20, 91,081,697.42 and 19,780,551.36 is: 29,670,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,721,179.20 : 91,081,697.42 = 19,780,551.36 : x
  2. Step 2: Convert to fraction form
    60,721,179.20/91,081,697.42 = 19,780,551.36/x
  3. Step 3: Cross multiply
    60,721,179.20x = 91,081,697.42 × 19,780,551.36
  4. Step 4: Simplify right side
    60,721,179.20x = 1,801,646,193,772,289.50
  5. Step 5: Solve for x
    x = 1,801,646,193,772,289.50/60,721,179.20
  6. Step 6: Final answer
    x = 29,670,803.79

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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.