Home / 18,567,920.40-27,851,880.60-12,899,216.40

Finding the Fourth Proportional to 18,567,920.40, 27,851,880.60 and 12,899,216.40

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Solution

The fourth proportional to 18,567,920.40, 27,851,880.60 and 12,899,216.40 is: 19,348,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567,920.40 : 27,851,880.60 = 12,899,216.40 : x
  2. Step 2: Convert to fraction form
    18,567,920.40/27,851,880.60 = 12,899,216.40/x
  3. Step 3: Cross multiply
    18,567,920.40x = 27,851,880.60 × 12,899,216.40
  4. Step 4: Simplify right side
    18,567,920.40x = 359,267,435,006,361.88
  5. Step 5: Solve for x
    x = 359,267,435,006,361.88/18,567,920.40
  6. Step 6: Final answer
    x = 19,348,824.60

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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.