Home / 12,128,804.72-16,739,218.26-6,903,083.51

Finding the Fourth Proportional to 12,128,804.72, 16,739,218.26 and 6,903,083.51

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Solution

The fourth proportional to 12,128,804.72, 16,739,218.26 and 6,903,083.51 is: 9,527,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,804.72 : 16,739,218.26 = 6,903,083.51 : x
  2. Step 2: Convert to fraction form
    12,128,804.72/16,739,218.26 = 6,903,083.51/x
  3. Step 3: Cross multiply
    12,128,804.72x = 16,739,218.26 × 6,903,083.51
  4. Step 4: Simplify right side
    12,128,804.72x = 115,552,221,457,200.80
  5. Step 5: Solve for x
    x = 115,552,221,457,200.80/12,128,804.72
  6. Step 6: Final answer
    x = 9,527,090.61

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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.