Home / 8,400,020.78-12,602,646.77-3,008,717.69

Finding the Fourth Proportional to 8,400,020.78, 12,602,646.77 and 3,008,717.69

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Solution

The fourth proportional to 8,400,020.78, 12,602,646.77 and 3,008,717.69 is: 4,514,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400,020.78 : 12,602,646.77 = 3,008,717.69 : x
  2. Step 2: Convert to fraction form
    8,400,020.78/12,602,646.77 = 3,008,717.69/x
  3. Step 3: Cross multiply
    8,400,020.78x = 12,602,646.77 × 3,008,717.69
  4. Step 4: Simplify right side
    8,400,020.78x = 37,917,806,199,663.54
  5. Step 5: Solve for x
    x = 37,917,806,199,663.54/8,400,020.78
  6. Step 6: Final answer
    x = 4,514,013.38

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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.