Home / 171,072,205.80-256,384,359.90-68,752,487.40

Finding the Fourth Proportional to 171,072,205.80, 256,384,359.90 and 68,752,487.40

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Solution

The fourth proportional to 171,072,205.80, 256,384,359.90 and 68,752,487.40 is: 103,038,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,205.80 : 256,384,359.90 = 68,752,487.40 : x
  2. Step 2: Convert to fraction form
    171,072,205.80/256,384,359.90 = 68,752,487.40/x
  3. Step 3: Cross multiply
    171,072,205.80x = 256,384,359.90 × 68,752,487.40
  4. Step 4: Simplify right side
    171,072,205.80x = 17,627,062,473,581,818
  5. Step 5: Solve for x
    x = 17,627,062,473,581,818/171,072,205.80
  6. Step 6: Final answer
    x = 103,038,727.95

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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.