Home / 137,909,612.40-206,864,418.60-61,151,161.20

Finding the Fourth Proportional to 137,909,612.40, 206,864,418.60 and 61,151,161.20

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Solution

The fourth proportional to 137,909,612.40, 206,864,418.60 and 61,151,161.20 is: 91,726,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,909,612.40 : 206,864,418.60 = 61,151,161.20 : x
  2. Step 2: Convert to fraction form
    137,909,612.40/206,864,418.60 = 61,151,161.20/x
  3. Step 3: Cross multiply
    137,909,612.40x = 206,864,418.60 × 61,151,161.20
  4. Step 4: Simplify right side
    137,909,612.40x = 12,649,999,408,352,878
  5. Step 5: Solve for x
    x = 12,649,999,408,352,878/137,909,612.40
  6. Step 6: Final answer
    x = 91,726,741.80

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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.