Home / 86,171,930.43-118,917,128.33-47,013,710.65

Finding the Fourth Proportional to 86,171,930.43, 118,917,128.33 and 47,013,710.65

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Solution

The fourth proportional to 86,171,930.43, 118,917,128.33 and 47,013,710.65 is: 64,878,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,171,930.43 : 118,917,128.33 = 47,013,710.65 : x
  2. Step 2: Convert to fraction form
    86,171,930.43/118,917,128.33 = 47,013,710.65/x
  3. Step 3: Cross multiply
    86,171,930.43x = 118,917,128.33 × 47,013,710.65
  4. Step 4: Simplify right side
    86,171,930.43x = 5,590,735,462,279,478
  5. Step 5: Solve for x
    x = 5,590,735,462,279,478/86,171,930.43
  6. Step 6: Final answer
    x = 64,878,846.68

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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.