Home / 451,927,612.82-623,641,739.97-256,353,125.78

Finding the Fourth Proportional to 451,927,612.82, 623,641,739.97 and 256,353,125.78

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Solution

The fourth proportional to 451,927,612.82, 623,641,739.97 and 256,353,125.78 is: 353,756,895.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,927,612.82 : 623,641,739.97 = 256,353,125.78 : x
  2. Step 2: Convert to fraction form
    451,927,612.82/623,641,739.97 = 256,353,125.78/x
  3. Step 3: Cross multiply
    451,927,612.82x = 623,641,739.97 × 256,353,125.78
  4. Step 4: Simplify right side
    451,927,612.82x = 159,872,509,408,187,456
  5. Step 5: Solve for x
    x = 159,872,509,408,187,456/451,927,612.82
  6. Step 6: Final answer
    x = 353,756,895.74

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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.