Home / 13,117,865.15-18,102,716.78-7,237,499.03

Finding the Fourth Proportional to 13,117,865.15, 18,102,716.78 and 7,237,499.03

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Solution

The fourth proportional to 13,117,865.15, 18,102,716.78 and 7,237,499.03 is: 9,987,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117,865.15 : 18,102,716.78 = 7,237,499.03 : x
  2. Step 2: Convert to fraction form
    13,117,865.15/18,102,716.78 = 7,237,499.03/x
  3. Step 3: Cross multiply
    13,117,865.15x = 18,102,716.78 × 7,237,499.03
  4. Step 4: Simplify right side
    13,117,865.15x = 131,018,395,144,684
  5. Step 5: Solve for x
    x = 131,018,395,144,684/13,117,865.15
  6. Step 6: Final answer
    x = 9,987,783.35

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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.