Home / 259,111,880.53-388,667,820.81-86,588,694.01

Finding the Fourth Proportional to 259,111,880.53, 388,667,820.81 and 86,588,694.01

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Solution

The fourth proportional to 259,111,880.53, 388,667,820.81 and 86,588,694.01 is: 129,883,041.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,880.53 : 388,667,820.81 = 86,588,694.01 : x
  2. Step 2: Convert to fraction form
    259,111,880.53/388,667,820.81 = 86,588,694.01/x
  3. Step 3: Cross multiply
    259,111,880.53x = 388,667,820.81 × 86,588,694.01
  4. Step 4: Simplify right side
    259,111,880.53x = 33,654,239,007,650,604
  5. Step 5: Solve for x
    x = 33,654,239,007,650,604/259,111,880.53
  6. Step 6: Final answer
    x = 129,883,041.02

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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.