Home / 12,079,201.86-16,662,946.37-7,180,939.71

Finding the Fourth Proportional to 12,079,201.86, 16,662,946.37 and 7,180,939.71

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Solution

The fourth proportional to 12,079,201.86, 16,662,946.37 and 7,180,939.71 is: 9,905,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079,201.86 : 16,662,946.37 = 7,180,939.71 : x
  2. Step 2: Convert to fraction form
    12,079,201.86/16,662,946.37 = 7,180,939.71/x
  3. Step 3: Cross multiply
    12,079,201.86x = 16,662,946.37 × 7,180,939.71
  4. Step 4: Simplify right side
    12,079,201.86x = 119,655,613,238,028.66
  5. Step 5: Solve for x
    x = 119,655,613,238,028.66/12,079,201.86
  6. Step 6: Final answer
    x = 9,905,920.49

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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.