Home / 273,943,009.97-411,055,789.79-128,391,358.40

Finding the Fourth Proportional to 273,943,009.97, 411,055,789.79 and 128,391,358.40

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Solution

The fourth proportional to 273,943,009.97, 411,055,789.79 and 128,391,358.40 is: 192,653,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,943,009.97 : 411,055,789.79 = 128,391,358.40 : x
  2. Step 2: Convert to fraction form
    273,943,009.97/411,055,789.79 = 128,391,358.40/x
  3. Step 3: Cross multiply
    273,943,009.97x = 411,055,789.79 × 128,391,358.40
  4. Step 4: Simplify right side
    273,943,009.97x = 52,776,011,230,671,576
  5. Step 5: Solve for x
    x = 52,776,011,230,671,576/273,943,009.97
  6. Step 6: Final answer
    x = 192,653,250.16

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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.