Home / 13,685,831.67-18,855,474.80-11,234,561.88

Finding the Fourth Proportional to 13,685,831.67, 18,855,474.80 and 11,234,561.88

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Solution

The fourth proportional to 13,685,831.67, 18,855,474.80 and 11,234,561.88 is: 15,478,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685,831.67 : 18,855,474.80 = 11,234,561.88 : x
  2. Step 2: Convert to fraction form
    13,685,831.67/18,855,474.80 = 11,234,561.88/x
  3. Step 3: Cross multiply
    13,685,831.67x = 18,855,474.80 × 11,234,561.88
  4. Step 4: Simplify right side
    13,685,831.67x = 211,832,998,417,380.66
  5. Step 5: Solve for x
    x = 211,832,998,417,380.66/13,685,831.67
  6. Step 6: Final answer
    x = 15,478,270.05

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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.