Home / 13,943,918.40-20,915,877.60-8,487,790.80

Finding the Fourth Proportional to 13,943,918.40, 20,915,877.60 and 8,487,790.80

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Solution

The fourth proportional to 13,943,918.40, 20,915,877.60 and 8,487,790.80 is: 12,731,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943,918.40 : 20,915,877.60 = 8,487,790.80 : x
  2. Step 2: Convert to fraction form
    13,943,918.40/20,915,877.60 = 8,487,790.80/x
  3. Step 3: Cross multiply
    13,943,918.40x = 20,915,877.60 × 8,487,790.80
  4. Step 4: Simplify right side
    13,943,918.40x = 177,529,593,467,206.09
  5. Step 5: Solve for x
    x = 177,529,593,467,206.09/13,943,918.40
  6. Step 6: Final answer
    x = 12,731,686.20

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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.