Home / 154,557,009.20-231,835,513.80-82,893,393.20

Finding the Fourth Proportional to 154,557,009.20, 231,835,513.80 and 82,893,393.20

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Solution

The fourth proportional to 154,557,009.20, 231,835,513.80 and 82,893,393.20 is: 124,340,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557,009.20 : 231,835,513.80 = 82,893,393.20 : x
  2. Step 2: Convert to fraction form
    154,557,009.20/231,835,513.80 = 82,893,393.20/x
  3. Step 3: Cross multiply
    154,557,009.20x = 231,835,513.80 × 82,893,393.20
  4. Step 4: Simplify right side
    154,557,009.20x = 19,217,632,403,147,428
  5. Step 5: Solve for x
    x = 19,217,632,403,147,428/154,557,009.20
  6. Step 6: Final answer
    x = 124,340,089.80

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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.