Home / 12,289,490.40-18,435,110.40-3,769,813.20

Finding the Fourth Proportional to 12,289,490.40, 18,435,110.40 and 3,769,813.20

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Solution

The fourth proportional to 12,289,490.40, 18,435,110.40 and 3,769,813.20 is: 5,654,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289,490.40 : 18,435,110.40 = 3,769,813.20 : x
  2. Step 2: Convert to fraction form
    12,289,490.40/18,435,110.40 = 3,769,813.20/x
  3. Step 3: Cross multiply
    12,289,490.40x = 18,435,110.40 × 3,769,813.20
  4. Step 4: Simplify right side
    12,289,490.40x = 69,496,922,529,377.28
  5. Step 5: Solve for x
    x = 69,496,922,529,377.28/12,289,490.40
  6. Step 6: Final answer
    x = 5,654,988.15

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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.