Home / 13,083,704.40-18,051,887.16-7,855,355.28

Finding the Fourth Proportional to 13,083,704.40, 18,051,887.16 and 7,855,355.28

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Solution

The fourth proportional to 13,083,704.40, 18,051,887.16 and 7,855,355.28 is: 10,838,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083,704.40 : 18,051,887.16 = 7,855,355.28 : x
  2. Step 2: Convert to fraction form
    13,083,704.40/18,051,887.16 = 7,855,355.28/x
  3. Step 3: Cross multiply
    13,083,704.40x = 18,051,887.16 × 7,855,355.28
  4. Step 4: Simplify right side
    13,083,704.40x = 141,803,987,116,270.22
  5. Step 5: Solve for x
    x = 141,803,987,116,270.22/13,083,704.40
  6. Step 6: Final answer
    x = 10,838,213.92

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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.