Home / 418,078,320.15-627,076,957.82-126,948,002.07

Finding the Fourth Proportional to 418,078,320.15, 627,076,957.82 and 126,948,002.07

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Solution

The fourth proportional to 418,078,320.15, 627,076,957.82 and 126,948,002.07 is: 190,409,698.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,078,320.15 : 627,076,957.82 = 126,948,002.07 : x
  2. Step 2: Convert to fraction form
    418,078,320.15/627,076,957.82 = 126,948,002.07/x
  3. Step 3: Cross multiply
    418,078,320.15x = 627,076,957.82 × 126,948,002.07
  4. Step 4: Simplify right side
    418,078,320.15x = 79,606,166,938,747,920
  5. Step 5: Solve for x
    x = 79,606,166,938,747,920/418,078,320.15
  6. Step 6: Final answer
    x = 190,409,698.62

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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.