Home / 68,640,159.40-94,725,269.94-40,384,504.78

Finding the Fourth Proportional to 68,640,159.40, 94,725,269.94 and 40,384,504.78

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Solution

The fourth proportional to 68,640,159.40, 94,725,269.94 and 40,384,504.78 is: 55,731,705.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640,159.40 : 94,725,269.94 = 40,384,504.78 : x
  2. Step 2: Convert to fraction form
    68,640,159.40/94,725,269.94 = 40,384,504.78/x
  3. Step 3: Cross multiply
    68,640,159.40x = 94,725,269.94 × 40,384,504.78
  4. Step 4: Simplify right side
    68,640,159.40x = 3,825,433,116,678,720.50
  5. Step 5: Solve for x
    x = 3,825,433,116,678,720.50/68,640,159.40
  6. Step 6: Final answer
    x = 55,731,705.03

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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.