Home / 485,557,843.70-670,042,312.41-273,852,020.87

Finding the Fourth Proportional to 485,557,843.70, 670,042,312.41 and 273,852,020.87

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Solution

The fourth proportional to 485,557,843.70, 670,042,312.41 and 273,852,020.87 is: 377,900,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,557,843.70 : 670,042,312.41 = 273,852,020.87 : x
  2. Step 2: Convert to fraction form
    485,557,843.70/670,042,312.41 = 273,852,020.87/x
  3. Step 3: Cross multiply
    485,557,843.70x = 670,042,312.41 × 273,852,020.87
  4. Step 4: Simplify right side
    485,557,843.70x = 183,492,441,320,115,968
  5. Step 5: Solve for x
    x = 183,492,441,320,115,968/485,557,843.70
  6. Step 6: Final answer
    x = 377,900,272.23

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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.