Home / 13,167,879.48-18,168,951.06-9,036,403.38

Finding the Fourth Proportional to 13,167,879.48, 18,168,951.06 and 9,036,403.38

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Solution

The fourth proportional to 13,167,879.48, 18,168,951.06 and 9,036,403.38 is: 12,468,368.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167,879.48 : 18,168,951.06 = 9,036,403.38 : x
  2. Step 2: Convert to fraction form
    13,167,879.48/18,168,951.06 = 9,036,403.38/x
  3. Step 3: Cross multiply
    13,167,879.48x = 18,168,951.06 × 9,036,403.38
  4. Step 4: Simplify right side
    13,167,879.48x = 164,181,970,769,638.59
  5. Step 5: Solve for x
    x = 164,181,970,769,638.59/13,167,879.48
  6. Step 6: Final answer
    x = 12,468,368.28

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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.