Home / 18,439,670.80-27,659,506.20-12,069,571.60

Finding the Fourth Proportional to 18,439,670.80, 27,659,506.20 and 12,069,571.60

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Solution

The fourth proportional to 18,439,670.80, 27,659,506.20 and 12,069,571.60 is: 18,104,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439,670.80 : 27,659,506.20 = 12,069,571.60 : x
  2. Step 2: Convert to fraction form
    18,439,670.80/27,659,506.20 = 12,069,571.60/x
  3. Step 3: Cross multiply
    18,439,670.80x = 27,659,506.20 × 12,069,571.60
  4. Step 4: Simplify right side
    18,439,670.80x = 333,838,390,501,543.88
  5. Step 5: Solve for x
    x = 333,838,390,501,543.88/18,439,670.80
  6. Step 6: Final answer
    x = 18,104,357.40

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1.5x scale

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.