Home / 71,287,069.82-98,359,288.16-40,347,240.02

Finding the Fourth Proportional to 71,287,069.82, 98,359,288.16 and 40,347,240.02

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Solution

The fourth proportional to 71,287,069.82, 98,359,288.16 and 40,347,240.02 is: 55,669,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287,069.82 : 98,359,288.16 = 40,347,240.02 : x
  2. Step 2: Convert to fraction form
    71,287,069.82/98,359,288.16 = 40,347,240.02/x
  3. Step 3: Cross multiply
    71,287,069.82x = 98,359,288.16 × 40,347,240.02
  4. Step 4: Simplify right side
    71,287,069.82x = 3,968,525,807,587,864.50
  5. Step 5: Solve for x
    x = 3,968,525,807,587,864.50/71,287,069.82
  6. Step 6: Final answer
    x = 55,669,644.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.