Home / 427,436,400,418.60-641,263,124,976.72-197,869,239,534.74

Finding the Fourth Proportional to 427,436,400,418.60, 641,263,124,976.72 and 197,869,239,534.74

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Solution

The fourth proportional to 427,436,400,418.60, 641,263,124,976.72 and 197,869,239,534.74 is: 296,854,097,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,436,400,418.60 : 641,263,124,976.72 = 197,869,239,534.74 : x
  2. Step 2: Convert to fraction form
    427,436,400,418.60/641,263,124,976.72 = 197,869,239,534.74/x
  3. Step 3: Cross multiply
    427,436,400,418.60x = 641,263,124,976.72 × 197,869,239,534.74
  4. Step 4: Simplify right side
    427,436,400,418.60x = 126,886,246,880,814,517,190,656
  5. Step 5: Solve for x
    x = 126,886,246,880,814,517,190,656/427,436,400,418.60
  6. Step 6: Final answer
    x = 296,854,097,490.41

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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.