Home / 12,487,884-18,716,915.52-6,425,520

Finding the Fourth Proportional to 12,487,884, 18,716,915.52 and 6,425,520

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Solution

The fourth proportional to 12,487,884, 18,716,915.52 and 6,425,520 is: 9,630,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,884 : 18,716,915.52 = 6,425,520 : x
  2. Step 2: Convert to fraction form
    12,487,884/18,716,915.52 = 6,425,520/x
  3. Step 3: Cross multiply
    12,487,884x = 18,716,915.52 × 6,425,520
  4. Step 4: Simplify right side
    12,487,884x = 120,265,915,012,070.39
  5. Step 5: Solve for x
    x = 120,265,915,012,070.39/12,487,884
  6. Step 6: Final answer
    x = 9,630,607.96

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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.