Home / 12,664,848.30-18,995,814.45-3,689,400.30

Finding the Fourth Proportional to 12,664,848.30, 18,995,814.45 and 3,689,400.30

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Solution

The fourth proportional to 12,664,848.30, 18,995,814.45 and 3,689,400.30 is: 5,533,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664,848.30 : 18,995,814.45 = 3,689,400.30 : x
  2. Step 2: Convert to fraction form
    12,664,848.30/18,995,814.45 = 3,689,400.30/x
  3. Step 3: Cross multiply
    12,664,848.30x = 18,995,814.45 × 3,689,400.30
  4. Step 4: Simplify right side
    12,664,848.30x = 70,083,163,530,574.33
  5. Step 5: Solve for x
    x = 70,083,163,530,574.33/12,664,848.30
  6. Step 6: Final answer
    x = 5,533,675.72

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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.