Home / 13,891,969.60-20,837,954.40-7,820,468.80

Finding the Fourth Proportional to 13,891,969.60, 20,837,954.40 and 7,820,468.80

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Solution

The fourth proportional to 13,891,969.60, 20,837,954.40 and 7,820,468.80 is: 11,730,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891,969.60 : 20,837,954.40 = 7,820,468.80 : x
  2. Step 2: Convert to fraction form
    13,891,969.60/20,837,954.40 = 7,820,468.80/x
  3. Step 3: Cross multiply
    13,891,969.60x = 20,837,954.40 × 7,820,468.80
  4. Step 4: Simplify right side
    13,891,969.60x = 162,962,572,241,022.72
  5. Step 5: Solve for x
    x = 162,962,572,241,022.72/13,891,969.60
  6. Step 6: Final answer
    x = 11,730,703.20

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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.