Home / 13,328,971.79-18,394,006.09-7,448,606.01

Finding the Fourth Proportional to 13,328,971.79, 18,394,006.09 and 7,448,606.01

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Solution

The fourth proportional to 13,328,971.79, 18,394,006.09 and 7,448,606.01 is: 10,279,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328,971.79 : 18,394,006.09 = 7,448,606.01 : x
  2. Step 2: Convert to fraction form
    13,328,971.79/18,394,006.09 = 7,448,606.01/x
  3. Step 3: Cross multiply
    13,328,971.79x = 18,394,006.09 × 7,448,606.01
  4. Step 4: Simplify right side
    13,328,971.79x = 137,009,704,291,329.08
  5. Step 5: Solve for x
    x = 137,009,704,291,329.08/13,328,971.79
  6. Step 6: Final answer
    x = 10,279,090.28

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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.