Home / 12,905,272.55-17,809,915.60-7,103,992.61

Finding the Fourth Proportional to 12,905,272.55, 17,809,915.60 and 7,103,992.61

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Solution

The fourth proportional to 12,905,272.55, 17,809,915.60 and 7,103,992.61 is: 9,803,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,272.55 : 17,809,915.60 = 7,103,992.61 : x
  2. Step 2: Convert to fraction form
    12,905,272.55/17,809,915.60 = 7,103,992.61/x
  3. Step 3: Cross multiply
    12,905,272.55x = 17,809,915.60 × 7,103,992.61
  4. Step 4: Simplify right side
    12,905,272.55x = 126,521,508,860,528.50
  5. Step 5: Solve for x
    x = 126,521,508,860,528.50/12,905,272.55
  6. Step 6: Final answer
    x = 9,803,861.82

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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.