Home / 662,252,823.63-913,621,731.39-394,178,340.90

Finding the Fourth Proportional to 662,252,823.63, 913,621,731.39 and 394,178,340.90

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Solution

The fourth proportional to 662,252,823.63, 913,621,731.39 and 394,178,340.90 is: 543,795,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,252,823.63 : 913,621,731.39 = 394,178,340.90 : x
  2. Step 2: Convert to fraction form
    662,252,823.63/913,621,731.39 = 394,178,340.90/x
  3. Step 3: Cross multiply
    662,252,823.63x = 913,621,731.39 × 394,178,340.90
  4. Step 4: Simplify right side
    662,252,823.63x = 360,129,898,289,495,616
  5. Step 5: Solve for x
    x = 360,129,898,289,495,616/662,252,823.63
  6. Step 6: Final answer
    x = 543,795,187.34

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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.