Home / 449,248,437,639.90-619,601,351,688.66-394,938,865,083.42

Finding the Fourth Proportional to 449,248,437,639.90, 619,601,351,688.66 and 394,938,865,083.42

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Solution

The fourth proportional to 449,248,437,639.90, 619,601,351,688.66 and 394,938,865,083.42 is: 544,697,842,302.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,248,437,639.90 : 619,601,351,688.66 = 394,938,865,083.42 : x
  2. Step 2: Convert to fraction form
    449,248,437,639.90/619,601,351,688.66 = 394,938,865,083.42/x
  3. Step 3: Cross multiply
    449,248,437,639.90x = 619,601,351,688.66 × 394,938,865,083.42
  4. Step 4: Simplify right side
    449,248,437,639.90x = 244,704,654,640,072,355,741,696
  5. Step 5: Solve for x
    x = 244,704,654,640,072,355,741,696/449,248,437,639.90
  6. Step 6: Final answer
    x = 544,697,842,302.17

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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.