Home / 12,820,729.92-17,692,609.80-7,019,513.16

Finding the Fourth Proportional to 12,820,729.92, 17,692,609.80 and 7,019,513.16

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Solution

The fourth proportional to 12,820,729.92, 17,692,609.80 and 7,019,513.16 is: 9,686,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,729.92 : 17,692,609.80 = 7,019,513.16 : x
  2. Step 2: Convert to fraction form
    12,820,729.92/17,692,609.80 = 7,019,513.16/x
  3. Step 3: Cross multiply
    12,820,729.92x = 17,692,609.80 × 7,019,513.16
  4. Step 4: Simplify right side
    12,820,729.92x = 124,193,507,325,844.97
  5. Step 5: Solve for x
    x = 124,193,507,325,844.97/12,820,729.92
  6. Step 6: Final answer
    x = 9,686,929.54

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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.