Home / 639,566,671.28-959,204,975.74-289,581,696.07

Finding the Fourth Proportional to 639,566,671.28, 959,204,975.74 and 289,581,696.07

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Solution

The fourth proportional to 639,566,671.28, 959,204,975.74 and 289,581,696.07 is: 434,306,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,566,671.28 : 959,204,975.74 = 289,581,696.07 : x
  2. Step 2: Convert to fraction form
    639,566,671.28/959,204,975.74 = 289,581,696.07/x
  3. Step 3: Cross multiply
    639,566,671.28x = 959,204,975.74 × 289,581,696.07
  4. Step 4: Simplify right side
    639,566,671.28x = 277,768,203,750,456,224
  5. Step 5: Solve for x
    x = 277,768,203,750,456,224/639,566,671.28
  6. Step 6: Final answer
    x = 434,306,877.18

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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.