Home / 419,784,028.80-629,676,043.20-402,777,916.80

Finding the Fourth Proportional to 419,784,028.80, 629,676,043.20 and 402,777,916.80

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Solution

The fourth proportional to 419,784,028.80, 629,676,043.20 and 402,777,916.80 is: 604,166,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,784,028.80 : 629,676,043.20 = 402,777,916.80 : x
  2. Step 2: Convert to fraction form
    419,784,028.80/629,676,043.20 = 402,777,916.80/x
  3. Step 3: Cross multiply
    419,784,028.80x = 629,676,043.20 × 402,777,916.80
  4. Step 4: Simplify right side
    419,784,028.80x = 253,619,604,938,962,848
  5. Step 5: Solve for x
    x = 253,619,604,938,962,848/419,784,028.80
  6. Step 6: Final answer
    x = 604,166,875.20

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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.