Home / 13,209,816.80-19,814,725.20-8,663,043.80

Finding the Fourth Proportional to 13,209,816.80, 19,814,725.20 and 8,663,043.80

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Solution

The fourth proportional to 13,209,816.80, 19,814,725.20 and 8,663,043.80 is: 12,994,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,816.80 : 19,814,725.20 = 8,663,043.80 : x
  2. Step 2: Convert to fraction form
    13,209,816.80/19,814,725.20 = 8,663,043.80/x
  3. Step 3: Cross multiply
    13,209,816.80x = 19,814,725.20 × 8,663,043.80
  4. Step 4: Simplify right side
    13,209,816.80x = 171,655,832,292,563.78
  5. Step 5: Solve for x
    x = 171,655,832,292,563.78/13,209,816.80
  6. Step 6: Final answer
    x = 12,994,565.70

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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.