Home / 804,978,109.80-1,207,467,164.70-259,719,643.80

Finding the Fourth Proportional to 804,978,109.80, 1,207,467,164.70 and 259,719,643.80

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Solution

The fourth proportional to 804,978,109.80, 1,207,467,164.70 and 259,719,643.80 is: 389,579,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,978,109.80 : 1,207,467,164.70 = 259,719,643.80 : x
  2. Step 2: Convert to fraction form
    804,978,109.80/1,207,467,164.70 = 259,719,643.80/x
  3. Step 3: Cross multiply
    804,978,109.80x = 1,207,467,164.70 × 259,719,643.80
  4. Step 4: Simplify right side
    804,978,109.80x = 313,602,941,916,079,936
  5. Step 5: Solve for x
    x = 313,602,941,916,079,936/804,978,109.80
  6. Step 6: Final answer
    x = 389,579,465.70

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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.