Home / 804,978,105.80-1,207,467,158.70-259,719,639.80

Finding the Fourth Proportional to 804,978,105.80, 1,207,467,158.70 and 259,719,639.80

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Solution

The fourth proportional to 804,978,105.80, 1,207,467,158.70 and 259,719,639.80 is: 389,579,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,978,105.80 : 1,207,467,158.70 = 259,719,639.80 : x
  2. Step 2: Convert to fraction form
    804,978,105.80/1,207,467,158.70 = 259,719,639.80/x
  3. Step 3: Cross multiply
    804,978,105.80x = 1,207,467,158.70 × 259,719,639.80
  4. Step 4: Simplify right side
    804,978,105.80x = 313,602,935,527,893,440
  5. Step 5: Solve for x
    x = 313,602,935,527,893,440/804,978,105.80
  6. Step 6: Final answer
    x = 389,579,459.70

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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.