Home / 409,460,776.78-614,191,165.20-136,831,543.78

Finding the Fourth Proportional to 409,460,776.78, 614,191,165.20 and 136,831,543.78

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Solution

The fourth proportional to 409,460,776.78, 614,191,165.20 and 136,831,543.78 is: 205,247,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,460,776.78 : 614,191,165.20 = 136,831,543.78 : x
  2. Step 2: Convert to fraction form
    409,460,776.78/614,191,165.20 = 136,831,543.78/x
  3. Step 3: Cross multiply
    409,460,776.78x = 614,191,165.20 × 136,831,543.78
  4. Step 4: Simplify right side
    409,460,776.78x = 84,040,725,310,353,024
  5. Step 5: Solve for x
    x = 84,040,725,310,353,024/409,460,776.78
  6. Step 6: Final answer
    x = 205,247,315.68

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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.