Home / 419,905,556.80-629,858,335.20-402,899,444.80

Finding the Fourth Proportional to 419,905,556.80, 629,858,335.20 and 402,899,444.80

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Solution

The fourth proportional to 419,905,556.80, 629,858,335.20 and 402,899,444.80 is: 604,349,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,556.80 : 629,858,335.20 = 402,899,444.80 : x
  2. Step 2: Convert to fraction form
    419,905,556.80/629,858,335.20 = 402,899,444.80/x
  3. Step 3: Cross multiply
    419,905,556.80x = 629,858,335.20 × 402,899,444.80
  4. Step 4: Simplify right side
    419,905,556.80x = 253,769,573,554,732,320
  5. Step 5: Solve for x
    x = 253,769,573,554,732,320/419,905,556.80
  6. Step 6: Final answer
    x = 604,349,167.20

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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.