Home / 8,321,920.40-12,482,880.60-5,920,691.60

Finding the Fourth Proportional to 8,321,920.40, 12,482,880.60 and 5,920,691.60

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Solution

The fourth proportional to 8,321,920.40, 12,482,880.60 and 5,920,691.60 is: 8,881,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,920.40 : 12,482,880.60 = 5,920,691.60 : x
  2. Step 2: Convert to fraction form
    8,321,920.40/12,482,880.60 = 5,920,691.60/x
  3. Step 3: Cross multiply
    8,321,920.40x = 12,482,880.60 × 5,920,691.60
  4. Step 4: Simplify right side
    8,321,920.40x = 73,907,286,312,222.95
  5. Step 5: Solve for x
    x = 73,907,286,312,222.95/8,321,920.40
  6. Step 6: Final answer
    x = 8,881,037.40

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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.