Home / 172,103,717.40-258,155,576.10-138,091,493.40

Finding the Fourth Proportional to 172,103,717.40, 258,155,576.10 and 138,091,493.40

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Solution

The fourth proportional to 172,103,717.40, 258,155,576.10 and 138,091,493.40 is: 207,137,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,103,717.40 : 258,155,576.10 = 138,091,493.40 : x
  2. Step 2: Convert to fraction form
    172,103,717.40/258,155,576.10 = 138,091,493.40/x
  3. Step 3: Cross multiply
    172,103,717.40x = 258,155,576.10 × 138,091,493.40
  4. Step 4: Simplify right side
    172,103,717.40x = 35,649,089,033,186,348
  5. Step 5: Solve for x
    x = 35,649,089,033,186,348/172,103,717.40
  6. Step 6: Final answer
    x = 207,137,240.10

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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.