Home / 12,929,516.26-17,842,852.19-7,128,505.59

Finding the Fourth Proportional to 12,929,516.26, 17,842,852.19 and 7,128,505.59

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Solution

The fourth proportional to 12,929,516.26, 17,842,852.19 and 7,128,505.59 is: 9,837,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,516.26 : 17,842,852.19 = 7,128,505.59 : x
  2. Step 2: Convert to fraction form
    12,929,516.26/17,842,852.19 = 7,128,505.59/x
  3. Step 3: Cross multiply
    12,929,516.26x = 17,842,852.19 × 7,128,505.59
  4. Step 4: Simplify right side
    12,929,516.26x = 127,192,871,629,235.34
  5. Step 5: Solve for x
    x = 127,192,871,629,235.34/12,929,516.26
  6. Step 6: Final answer
    x = 9,837,403.74

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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.