Home / 86,172,021.45-118,917,253.44-47,013,801.66

Finding the Fourth Proportional to 86,172,021.45, 118,917,253.44 and 47,013,801.66

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Solution

The fourth proportional to 86,172,021.45, 118,917,253.44 and 47,013,801.66 is: 64,878,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,172,021.45 : 118,917,253.44 = 47,013,801.66 : x
  2. Step 2: Convert to fraction form
    86,172,021.45/118,917,253.44 = 47,013,801.66/x
  3. Step 3: Cross multiply
    86,172,021.45x = 118,917,253.44 × 47,013,801.66
  4. Step 4: Simplify right side
    86,172,021.45x = 5,590,752,167,180,112
  5. Step 5: Solve for x
    x = 5,590,752,167,180,112/86,172,021.45
  6. Step 6: Final answer
    x = 64,878,972.00

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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.