Home / 12,226,161.45-16,865,077.20-7,634,511.21

Finding the Fourth Proportional to 12,226,161.45, 16,865,077.20 and 7,634,511.21

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Solution

The fourth proportional to 12,226,161.45, 16,865,077.20 and 7,634,511.21 is: 10,531,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226,161.45 : 16,865,077.20 = 7,634,511.21 : x
  2. Step 2: Convert to fraction form
    12,226,161.45/16,865,077.20 = 7,634,511.21/x
  3. Step 3: Cross multiply
    12,226,161.45x = 16,865,077.20 × 7,634,511.21
  4. Step 4: Simplify right side
    12,226,161.45x = 128,756,620,940,915.41
  5. Step 5: Solve for x
    x = 128,756,620,940,915.41/12,226,161.45
  6. Step 6: Final answer
    x = 10,531,238.40

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1.5x scale

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.