Home / 21,069,724.48-31,607,117.43-7,420,049.44

Finding the Fourth Proportional to 21,069,724.48, 31,607,117.43 and 7,420,049.44

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Solution

The fourth proportional to 21,069,724.48, 31,607,117.43 and 7,420,049.44 is: 11,130,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,724.48 : 31,607,117.43 = 7,420,049.44 : x
  2. Step 2: Convert to fraction form
    21,069,724.48/31,607,117.43 = 7,420,049.44/x
  3. Step 3: Cross multiply
    21,069,724.48x = 31,607,117.43 × 7,420,049.44
  4. Step 4: Simplify right side
    21,069,724.48x = 234,526,373,986,485.75
  5. Step 5: Solve for x
    x = 234,526,373,986,485.75/21,069,724.48
  6. Step 6: Final answer
    x = 11,130,965.39

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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.