Home / 814,171,406.19-1,221,773,651.89-347,836,343.53

Finding the Fourth Proportional to 814,171,406.19, 1,221,773,651.89 and 347,836,343.53

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Solution

The fourth proportional to 814,171,406.19, 1,221,773,651.89 and 347,836,343.53 is: 521,975,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,171,406.19 : 1,221,773,651.89 = 347,836,343.53 : x
  2. Step 2: Convert to fraction form
    814,171,406.19/1,221,773,651.89 = 347,836,343.53/x
  3. Step 3: Cross multiply
    814,171,406.19x = 1,221,773,651.89 × 347,836,343.53
  4. Step 4: Simplify right side
    814,171,406.19x = 424,977,279,694,712,704
  5. Step 5: Solve for x
    x = 424,977,279,694,712,704/814,171,406.19
  6. Step 6: Final answer
    x = 521,975,196.46

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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.