Home / 138,962,576.43-208,445,638.55-36,725,730.75

Finding the Fourth Proportional to 138,962,576.43, 208,445,638.55 and 36,725,730.75

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Solution

The fourth proportional to 138,962,576.43, 208,445,638.55 and 36,725,730.75 is: 55,089,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,962,576.43 : 208,445,638.55 = 36,725,730.75 : x
  2. Step 2: Convert to fraction form
    138,962,576.43/208,445,638.55 = 36,725,730.75/x
  3. Step 3: Cross multiply
    138,962,576.43x = 208,445,638.55 × 36,725,730.75
  4. Step 4: Simplify right side
    138,962,576.43x = 7,655,318,397,215,491
  5. Step 5: Solve for x
    x = 7,655,318,397,215,491/138,962,576.43
  6. Step 6: Final answer
    x = 55,089,064.94

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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.