Home / 259,111,880.52-388,667,820.80-86,588,694.04

Finding the Fourth Proportional to 259,111,880.52, 388,667,820.80 and 86,588,694.04

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Solution

The fourth proportional to 259,111,880.52, 388,667,820.80 and 86,588,694.04 is: 129,883,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,880.52 : 388,667,820.80 = 86,588,694.04 : x
  2. Step 2: Convert to fraction form
    259,111,880.52/388,667,820.80 = 86,588,694.04/x
  3. Step 3: Cross multiply
    259,111,880.52x = 388,667,820.80 × 86,588,694.04
  4. Step 4: Simplify right side
    259,111,880.52x = 33,654,239,018,444,752
  5. Step 5: Solve for x
    x = 33,654,239,018,444,752/259,111,880.52
  6. Step 6: Final answer
    x = 129,883,041.07

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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.