Home / 12,920,915.80-19,383,998.10-4,402,113.40

Finding the Fourth Proportional to 12,920,915.80, 19,383,998.10 and 4,402,113.40

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Solution

The fourth proportional to 12,920,915.80, 19,383,998.10 and 4,402,113.40 is: 6,604,064.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,915.80 : 19,383,998.10 = 4,402,113.40 : x
  2. Step 2: Convert to fraction form
    12,920,915.80/19,383,998.10 = 4,402,113.40/x
  3. Step 3: Cross multiply
    12,920,915.80x = 19,383,998.10 × 4,402,113.40
  4. Step 4: Simplify right side
    12,920,915.80x = 85,330,557,781,584.55
  5. Step 5: Solve for x
    x = 85,330,557,781,584.55/12,920,915.80
  6. Step 6: Final answer
    x = 6,604,064.22

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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.