Home / 13,442,804.37-18,547,881.30-7,641,129.33

Finding the Fourth Proportional to 13,442,804.37, 18,547,881.30 and 7,641,129.33

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Solution

The fourth proportional to 13,442,804.37, 18,547,881.30 and 7,641,129.33 is: 10,542,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442,804.37 : 18,547,881.30 = 7,641,129.33 : x
  2. Step 2: Convert to fraction form
    13,442,804.37/18,547,881.30 = 7,641,129.33/x
  3. Step 3: Cross multiply
    13,442,804.37x = 18,547,881.30 × 7,641,129.33
  4. Step 4: Simplify right side
    13,442,804.37x = 141,726,759,810,788.53
  5. Step 5: Solve for x
    x = 141,726,759,810,788.53/13,442,804.37
  6. Step 6: Final answer
    x = 10,542,945.94

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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.