Home / 658,374,230.20-987,113,447.70-313,493,078.20

Finding the Fourth Proportional to 658,374,230.20, 987,113,447.70 and 313,493,078.20

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Solution

The fourth proportional to 658,374,230.20, 987,113,447.70 and 313,493,078.20 is: 470,026,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,374,230.20 : 987,113,447.70 = 313,493,078.20 : x
  2. Step 2: Convert to fraction form
    658,374,230.20/987,113,447.70 = 313,493,078.20/x
  3. Step 3: Cross multiply
    658,374,230.20x = 987,113,447.70 × 313,493,078.20
  4. Step 4: Simplify right side
    658,374,230.20x = 309,453,233,252,087,744
  5. Step 5: Solve for x
    x = 309,453,233,252,087,744/658,374,230.20
  6. Step 6: Final answer
    x = 470,026,345.29

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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.