Home / 103,864,069,732.45-155,593,206,209.49-71,552,206,121.22

Finding the Fourth Proportional to 103,864,069,732.45, 155,593,206,209.49 and 71,552,206,121.22

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Solution

The fourth proportional to 103,864,069,732.45, 155,593,206,209.49 and 71,552,206,121.22 is: 107,188,531,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,864,069,732.45 : 155,593,206,209.49 = 71,552,206,121.22 : x
  2. Step 2: Convert to fraction form
    103,864,069,732.45/155,593,206,209.49 = 71,552,206,121.22/x
  3. Step 3: Cross multiply
    103,864,069,732.45x = 155,593,206,209.49 × 71,552,206,121.22
  4. Step 4: Simplify right side
    103,864,069,732.45x = 11,133,037,161,762,137,309,184
  5. Step 5: Solve for x
    x = 11,133,037,161,762,137,309,184/103,864,069,732.45
  6. Step 6: Final answer
    x = 107,188,531,996.10

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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.