Home / 768,015,379.56-1,059,864,032.97-415,591,373.10

Finding the Fourth Proportional to 768,015,379.56, 1,059,864,032.97 and 415,591,373.10

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Solution

The fourth proportional to 768,015,379.56, 1,059,864,032.97 and 415,591,373.10 is: 573,517,614.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,015,379.56 : 1,059,864,032.97 = 415,591,373.10 : x
  2. Step 2: Convert to fraction form
    768,015,379.56/1,059,864,032.97 = 415,591,373.10/x
  3. Step 3: Cross multiply
    768,015,379.56x = 1,059,864,032.97 × 415,591,373.10
  4. Step 4: Simplify right side
    768,015,379.56x = 440,470,348,761,305,984
  5. Step 5: Solve for x
    x = 440,470,348,761,305,984/768,015,379.56
  6. Step 6: Final answer
    x = 573,517,614.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.