Home / 409,460,775.78-614,191,163.70-136,831,542.78

Finding the Fourth Proportional to 409,460,775.78, 614,191,163.70 and 136,831,542.78

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Solution

The fourth proportional to 409,460,775.78, 614,191,163.70 and 136,831,542.78 is: 205,247,314.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,460,775.78 : 614,191,163.70 = 136,831,542.78 : x
  2. Step 2: Convert to fraction form
    409,460,775.78/614,191,163.70 = 136,831,542.78/x
  3. Step 3: Cross multiply
    409,460,775.78x = 614,191,163.70 × 136,831,542.78
  4. Step 4: Simplify right side
    409,460,775.78x = 84,040,724,490,914,544
  5. Step 5: Solve for x
    x = 84,040,724,490,914,544/409,460,775.78
  6. Step 6: Final answer
    x = 205,247,314.18

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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.