Home / 172,609,931.22-238,258,471.05-137,392,336.50

Finding the Fourth Proportional to 172,609,931.22, 238,258,471.05 and 137,392,336.50

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Solution

The fourth proportional to 172,609,931.22, 238,258,471.05 and 137,392,336.50 is: 189,646,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,609,931.22 : 238,258,471.05 = 137,392,336.50 : x
  2. Step 2: Convert to fraction form
    172,609,931.22/238,258,471.05 = 137,392,336.50/x
  3. Step 3: Cross multiply
    172,609,931.22x = 238,258,471.05 × 137,392,336.50
  4. Step 4: Simplify right side
    172,609,931.22x = 32,734,888,028,477,108
  5. Step 5: Solve for x
    x = 32,734,888,028,477,108/172,609,931.22
  6. Step 6: Final answer
    x = 189,646,608.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.