Home / 129,157,036.31-199,445,343.19

Finding the Third Proportional to 129,157,036.31 and 199,445,343.19

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Solution

The third proportional to 129,157,036.31 and 199,445,343.19 is: 307,985,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,157,036.31 : 199,445,343.19 = 199,445,343.19 : x
  2. Step 2: Convert to fraction form
    129,157,036.31/199,445,343.19 = 199,445,343.19/x
  3. Step 3: Cross multiply
    129,157,036.31x = 199,445,343.19 × 199,445,343.19
  4. Step 4: Simplify right side
    129,157,036.31x = 39,778,444,919,179,656
  5. Step 5: Solve for x
    x = 39,778,444,919,179,656/129,157,036.31
  6. Step 6: Final answer
    x = 307,985,116.84

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.