Home / 763,391,997.80-1,145,087,996.70-188,963,325.80

Finding the Fourth Proportional to 763,391,997.80, 1,145,087,996.70 and 188,963,325.80

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Solution

The fourth proportional to 763,391,997.80, 1,145,087,996.70 and 188,963,325.80 is: 283,444,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,391,997.80 : 1,145,087,996.70 = 188,963,325.80 : x
  2. Step 2: Convert to fraction form
    763,391,997.80/1,145,087,996.70 = 188,963,325.80/x
  3. Step 3: Cross multiply
    763,391,997.80x = 1,145,087,996.70 × 188,963,325.80
  4. Step 4: Simplify right side
    763,391,997.80x = 216,379,636,190,091,456
  5. Step 5: Solve for x
    x = 216,379,636,190,091,456/763,391,997.80
  6. Step 6: Final answer
    x = 283,444,988.70

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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.