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Finding the Fourth Proportional to 749,088,003.80, 1,123,632,005.70 and 658,388,739.80

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Solution

The fourth proportional to 749,088,003.80, 1,123,632,005.70 and 658,388,739.80 is: 987,583,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,088,003.80 : 1,123,632,005.70 = 658,388,739.80 : x
  2. Step 2: Convert to fraction form
    749,088,003.80/1,123,632,005.70 = 658,388,739.80/x
  3. Step 3: Cross multiply
    749,088,003.80x = 1,123,632,005.70 × 658,388,739.80
  4. Step 4: Simplify right side
    749,088,003.80x = 739,786,660,231,769,344
  5. Step 5: Solve for x
    x = 739,786,660,231,769,344/749,088,003.80
  6. Step 6: Final answer
    x = 987,583,109.70

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1.5x scale

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.