Home / 424,114,629.40-636,171,944.10-315,275,512.60

Finding the Fourth Proportional to 424,114,629.40, 636,171,944.10 and 315,275,512.60

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Solution

The fourth proportional to 424,114,629.40, 636,171,944.10 and 315,275,512.60 is: 472,913,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,114,629.40 : 636,171,944.10 = 315,275,512.60 : x
  2. Step 2: Convert to fraction form
    424,114,629.40/636,171,944.10 = 315,275,512.60/x
  3. Step 3: Cross multiply
    424,114,629.40x = 636,171,944.10 × 315,275,512.60
  4. Step 4: Simplify right side
    424,114,629.40x = 200,569,435,777,866,080
  5. Step 5: Solve for x
    x = 200,569,435,777,866,080/424,114,629.40
  6. Step 6: Final answer
    x = 472,913,268.90

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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.