Home / 12,255,260.78-18,365,686.16-9,685,177.36

Finding the Fourth Proportional to 12,255,260.78, 18,365,686.16 and 9,685,177.36

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Solution

The fourth proportional to 12,255,260.78, 18,365,686.16 and 9,685,177.36 is: 14,514,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,260.78 : 18,365,686.16 = 9,685,177.36 : x
  2. Step 2: Convert to fraction form
    12,255,260.78/18,365,686.16 = 9,685,177.36/x
  3. Step 3: Cross multiply
    12,255,260.78x = 18,365,686.16 × 9,685,177.36
  4. Step 4: Simplify right side
    12,255,260.78x = 177,874,927,703,357.25
  5. Step 5: Solve for x
    x = 177,874,927,703,357.25/12,255,260.78
  6. Step 6: Final answer
    x = 14,514,169.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.