Home / 13,308,610.80-18,365,742.24-7,509,279.76

Finding the Fourth Proportional to 13,308,610.80, 18,365,742.24 and 7,509,279.76

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Solution

The fourth proportional to 13,308,610.80, 18,365,742.24 and 7,509,279.76 is: 10,362,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308,610.80 : 18,365,742.24 = 7,509,279.76 : x
  2. Step 2: Convert to fraction form
    13,308,610.80/18,365,742.24 = 7,509,279.76/x
  3. Step 3: Cross multiply
    13,308,610.80x = 18,365,742.24 × 7,509,279.76
  4. Step 4: Simplify right side
    13,308,610.80x = 137,913,496,480,209.05
  5. Step 5: Solve for x
    x = 137,913,496,480,209.05/13,308,610.80
  6. Step 6: Final answer
    x = 10,362,726.70

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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.