Home / 171,072,197.80-256,384,347.90-68,752,479.40

Finding the Fourth Proportional to 171,072,197.80, 256,384,347.90 and 68,752,479.40

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Solution

The fourth proportional to 171,072,197.80, 256,384,347.90 and 68,752,479.40 is: 103,038,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,197.80 : 256,384,347.90 = 68,752,479.40 : x
  2. Step 2: Convert to fraction form
    171,072,197.80/256,384,347.90 = 68,752,479.40/x
  3. Step 3: Cross multiply
    171,072,197.80x = 256,384,347.90 × 68,752,479.40
  4. Step 4: Simplify right side
    171,072,197.80x = 17,627,059,597,477,186
  5. Step 5: Solve for x
    x = 17,627,059,597,477,186/171,072,197.80
  6. Step 6: Final answer
    x = 103,038,715.96

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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.