Home / 12,984,511.80-19,451,106.90-11,388,876.60

Finding the Fourth Proportional to 12,984,511.80, 19,451,106.90 and 11,388,876.60

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Solution

The fourth proportional to 12,984,511.80, 19,451,106.90 and 11,388,876.60 is: 17,060,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,511.80 : 19,451,106.90 = 11,388,876.60 : x
  2. Step 2: Convert to fraction form
    12,984,511.80/19,451,106.90 = 11,388,876.60/x
  3. Step 3: Cross multiply
    12,984,511.80x = 19,451,106.90 × 11,388,876.60
  4. Step 4: Simplify right side
    12,984,511.80x = 221,526,256,217,508.53
  5. Step 5: Solve for x
    x = 221,526,256,217,508.53/12,984,511.80
  6. Step 6: Final answer
    x = 17,060,807.49

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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.