Home / 768,670,126.48-1,060,840,649.64-438,694,633.36

Finding the Fourth Proportional to 768,670,126.48, 1,060,840,649.64 and 438,694,633.36

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Solution

The fourth proportional to 768,670,126.48, 1,060,840,649.64 and 438,694,633.36 is: 605,441,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,670,126.48 : 1,060,840,649.64 = 438,694,633.36 : x
  2. Step 2: Convert to fraction form
    768,670,126.48/1,060,840,649.64 = 438,694,633.36/x
  3. Step 3: Cross multiply
    768,670,126.48x = 1,060,840,649.64 × 438,694,633.36
  4. Step 4: Simplify right side
    768,670,126.48x = 465,385,099,847,204,032
  5. Step 5: Solve for x
    x = 465,385,099,847,204,032/768,670,126.48
  6. Step 6: Final answer
    x = 605,441,897.40

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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.