Home / 8,286,531.40-12,408,801.90-6,606,915.40

Finding the Fourth Proportional to 8,286,531.40, 12,408,801.90 and 6,606,915.40

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Solution

The fourth proportional to 8,286,531.40, 12,408,801.90 and 6,606,915.40 is: 9,893,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286,531.40 : 12,408,801.90 = 6,606,915.40 : x
  2. Step 2: Convert to fraction form
    8,286,531.40/12,408,801.90 = 6,606,915.40/x
  3. Step 3: Cross multiply
    8,286,531.40x = 12,408,801.90 × 6,606,915.40
  4. Step 4: Simplify right side
    8,286,531.40x = 81,983,904,368,659.27
  5. Step 5: Solve for x
    x = 81,983,904,368,659.27/8,286,531.40
  6. Step 6: Final answer
    x = 9,893,633.47

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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.