Home / 13,839,712.80-20,759,569.20-6,665,259.30

Finding the Fourth Proportional to 13,839,712.80, 20,759,569.20 and 6,665,259.30

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Solution

The fourth proportional to 13,839,712.80, 20,759,569.20 and 6,665,259.30 is: 9,997,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839,712.80 : 20,759,569.20 = 6,665,259.30 : x
  2. Step 2: Convert to fraction form
    13,839,712.80/20,759,569.20 = 6,665,259.30/x
  3. Step 3: Cross multiply
    13,839,712.80x = 20,759,569.20 × 6,665,259.30
  4. Step 4: Simplify right side
    13,839,712.80x = 138,367,911,674,293.55
  5. Step 5: Solve for x
    x = 138,367,911,674,293.55/13,839,712.80
  6. Step 6: Final answer
    x = 9,997,888.95

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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.