Home / 19,512,205-29,236,377.56-11,812,511.86

Finding the Fourth Proportional to 19,512,205, 29,236,377.56 and 11,812,511.86

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Solution

The fourth proportional to 19,512,205, 29,236,377.56 and 11,812,511.86 is: 17,699,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,512,205 : 29,236,377.56 = 11,812,511.86 : x
  2. Step 2: Convert to fraction form
    19,512,205/29,236,377.56 = 11,812,511.86/x
  3. Step 3: Cross multiply
    19,512,205x = 29,236,377.56 × 11,812,511.86
  4. Step 4: Simplify right side
    19,512,205x = 345,355,056,670,937.81
  5. Step 5: Solve for x
    x = 345,355,056,670,937.81/19,512,205
  6. Step 6: Final answer
    x = 17,699,437.69

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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.