Home / 12,558,502.80-18,837,754.20-12,390,541.20

Finding the Fourth Proportional to 12,558,502.80, 18,837,754.20 and 12,390,541.20

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Solution

The fourth proportional to 12,558,502.80, 18,837,754.20 and 12,390,541.20 is: 18,585,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558,502.80 : 18,837,754.20 = 12,390,541.20 : x
  2. Step 2: Convert to fraction form
    12,558,502.80/18,837,754.20 = 12,390,541.20/x
  3. Step 3: Cross multiply
    12,558,502.80x = 18,837,754.20 × 12,390,541.20
  4. Step 4: Simplify right side
    12,558,502.80x = 233,409,969,530,573.03
  5. Step 5: Solve for x
    x = 233,409,969,530,573.03/12,558,502.80
  6. Step 6: Final answer
    x = 18,585,811.80

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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.