Home / 300,127,142.71-414,218,955.09-172,943,077.26

Finding the Fourth Proportional to 300,127,142.71, 414,218,955.09 and 172,943,077.26

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Solution

The fourth proportional to 300,127,142.71, 414,218,955.09 and 172,943,077.26 is: 238,686,511.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,127,142.71 : 414,218,955.09 = 172,943,077.26 : x
  2. Step 2: Convert to fraction form
    300,127,142.71/414,218,955.09 = 172,943,077.26/x
  3. Step 3: Cross multiply
    300,127,142.71x = 414,218,955.09 × 172,943,077.26
  4. Step 4: Simplify right side
    300,127,142.71x = 71,636,300,752,686,328
  5. Step 5: Solve for x
    x = 71,636,300,752,686,328/300,127,142.71
  6. Step 6: Final answer
    x = 238,686,511.68

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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.