Home / 13,209,237.19-18,230,739.87-8,055,588.16

Finding the Fourth Proportional to 13,209,237.19, 18,230,739.87 and 8,055,588.16

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Solution

The fourth proportional to 13,209,237.19, 18,230,739.87 and 8,055,588.16 is: 11,117,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,237.19 : 18,230,739.87 = 8,055,588.16 : x
  2. Step 2: Convert to fraction form
    13,209,237.19/18,230,739.87 = 8,055,588.16/x
  3. Step 3: Cross multiply
    13,209,237.19x = 18,230,739.87 × 8,055,588.16
  4. Step 4: Simplify right side
    13,209,237.19x = 146,859,332,244,811.94
  5. Step 5: Solve for x
    x = 146,859,332,244,811.94/13,209,237.19
  6. Step 6: Final answer
    x = 11,117,926.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.