Home / 172,103,567.40-258,155,351.10-138,091,343.40

Finding the Fourth Proportional to 172,103,567.40, 258,155,351.10 and 138,091,343.40

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Solution

The fourth proportional to 172,103,567.40, 258,155,351.10 and 138,091,343.40 is: 207,137,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,103,567.40 : 258,155,351.10 = 138,091,343.40 : x
  2. Step 2: Convert to fraction form
    172,103,567.40/258,155,351.10 = 138,091,343.40/x
  3. Step 3: Cross multiply
    172,103,567.40x = 258,155,351.10 × 138,091,343.40
  4. Step 4: Simplify right side
    172,103,567.40x = 35,649,019,239,297,668
  5. Step 5: Solve for x
    x = 35,649,019,239,297,668/172,103,567.40
  6. Step 6: Final answer
    x = 207,137,015.10

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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.