Home / 15,643,442.95-21,587,997.77-8,674,611.44

Finding the Fourth Proportional to 15,643,442.95, 21,587,997.77 and 8,674,611.44

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Solution

The fourth proportional to 15,643,442.95, 21,587,997.77 and 8,674,611.44 is: 11,970,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643,442.95 : 21,587,997.77 = 8,674,611.44 : x
  2. Step 2: Convert to fraction form
    15,643,442.95/21,587,997.77 = 8,674,611.44/x
  3. Step 3: Cross multiply
    15,643,442.95x = 21,587,997.77 × 8,674,611.44
  4. Step 4: Simplify right side
    15,643,442.95x = 187,267,492,454,619.97
  5. Step 5: Solve for x
    x = 187,267,492,454,619.97/15,643,442.95
  6. Step 6: Final answer
    x = 11,970,989.58

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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.