Home / 12,481,258.40-18,707,890.80-6,413,645.60

Finding the Fourth Proportional to 12,481,258.40, 18,707,890.80 and 6,413,645.60

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Solution

The fourth proportional to 12,481,258.40, 18,707,890.80 and 6,413,645.60 is: 9,613,275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,258.40 : 18,707,890.80 = 6,413,645.60 : x
  2. Step 2: Convert to fraction form
    12,481,258.40/18,707,890.80 = 6,413,645.60/x
  3. Step 3: Cross multiply
    12,481,258.40x = 18,707,890.80 × 6,413,645.60
  4. Step 4: Simplify right side
    12,481,258.40x = 119,985,781,514,700.48
  5. Step 5: Solve for x
    x = 119,985,781,514,700.48/12,481,258.40
  6. Step 6: Final answer
    x = 9,613,275.98

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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.