Home / 13,209,324.36-18,228,999.64-7,407,981.52

Finding the Fourth Proportional to 13,209,324.36, 18,228,999.64 and 7,407,981.52

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Solution

The fourth proportional to 13,209,324.36, 18,228,999.64 and 7,407,981.52 is: 10,223,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,324.36 : 18,228,999.64 = 7,407,981.52 : x
  2. Step 2: Convert to fraction form
    13,209,324.36/18,228,999.64 = 7,407,981.52/x
  3. Step 3: Cross multiply
    13,209,324.36x = 18,228,999.64 × 7,407,981.52
  4. Step 4: Simplify right side
    13,209,324.36x = 135,040,092,461,206.66
  5. Step 5: Solve for x
    x = 135,040,092,461,206.66/13,209,324.36
  6. Step 6: Final answer
    x = 10,223,088.54

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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.