Home / 13,580,283.80-18,737,511.21-8,616,915.45

Finding the Fourth Proportional to 13,580,283.80, 18,737,511.21 and 8,616,915.45

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Solution

The fourth proportional to 13,580,283.80, 18,737,511.21 and 8,616,915.45 is: 11,889,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580,283.80 : 18,737,511.21 = 8,616,915.45 : x
  2. Step 2: Convert to fraction form
    13,580,283.80/18,737,511.21 = 8,616,915.45/x
  3. Step 3: Cross multiply
    13,580,283.80x = 18,737,511.21 × 8,616,915.45
  4. Step 4: Simplify right side
    13,580,283.80x = 161,459,549,839,997.19
  5. Step 5: Solve for x
    x = 161,459,549,839,997.19/13,580,283.80
  6. Step 6: Final answer
    x = 11,889,261.84

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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.