Home / 157,283,233.20-217,143,968.09-139,831,375.05

Finding the Fourth Proportional to 157,283,233.20, 217,143,968.09 and 139,831,375.05

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Solution

The fourth proportional to 157,283,233.20, 217,143,968.09 and 139,831,375.05 is: 193,050,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,283,233.20 : 217,143,968.09 = 139,831,375.05 : x
  2. Step 2: Convert to fraction form
    157,283,233.20/217,143,968.09 = 139,831,375.05/x
  3. Step 3: Cross multiply
    157,283,233.20x = 217,143,968.09 × 139,831,375.05
  4. Step 4: Simplify right side
    157,283,233.20x = 30,363,539,641,138,868
  5. Step 5: Solve for x
    x = 30,363,539,641,138,868/157,283,233.20
  6. Step 6: Final answer
    x = 193,050,072.94

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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.