Home / 12,613,205.19-18,850,689.47-9,208,661.25

Finding the Fourth Proportional to 12,613,205.19, 18,850,689.47 and 9,208,661.25

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Solution

The fourth proportional to 12,613,205.19, 18,850,689.47 and 9,208,661.25 is: 13,762,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613,205.19 : 18,850,689.47 = 9,208,661.25 : x
  2. Step 2: Convert to fraction form
    12,613,205.19/18,850,689.47 = 9,208,661.25/x
  3. Step 3: Cross multiply
    12,613,205.19x = 18,850,689.47 × 9,208,661.25
  4. Step 4: Simplify right side
    12,613,205.19x = 173,589,613,612,128.72
  5. Step 5: Solve for x
    x = 173,589,613,612,128.72/12,613,205.19
  6. Step 6: Final answer
    x = 13,762,529.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.