Home / 157,042,453.05-216,714,361.31-87,427,832.49

Finding the Fourth Proportional to 157,042,453.05, 216,714,361.31 and 87,427,832.49

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Solution

The fourth proportional to 157,042,453.05, 216,714,361.31 and 87,427,832.49 is: 120,648,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,042,453.05 : 216,714,361.31 = 87,427,832.49 : x
  2. Step 2: Convert to fraction form
    157,042,453.05/216,714,361.31 = 87,427,832.49/x
  3. Step 3: Cross multiply
    157,042,453.05x = 216,714,361.31 × 87,427,832.49
  4. Step 4: Simplify right side
    157,042,453.05x = 18,946,866,878,350,876
  5. Step 5: Solve for x
    x = 18,946,866,878,350,876/157,042,453.05
  6. Step 6: Final answer
    x = 120,648,057.33

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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.