Home / 86,172,022.95-118,917,255.51-47,013,803.16

Finding the Fourth Proportional to 86,172,022.95, 118,917,255.51 and 47,013,803.16

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Solution

The fourth proportional to 86,172,022.95, 118,917,255.51 and 47,013,803.16 is: 64,878,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,172,022.95 : 118,917,255.51 = 47,013,803.16 : x
  2. Step 2: Convert to fraction form
    86,172,022.95/118,917,255.51 = 47,013,803.16/x
  3. Step 3: Cross multiply
    86,172,022.95x = 118,917,255.51 × 47,013,803.16
  4. Step 4: Simplify right side
    86,172,022.95x = 5,590,752,442,874,565
  5. Step 5: Solve for x
    x = 5,590,752,442,874,565/86,172,022.95
  6. Step 6: Final answer
    x = 64,878,974.07

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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.