Home / 455,851,731.75-683,845,699.99-144,969,489.78

Finding the Fourth Proportional to 455,851,731.75, 683,845,699.99 and 144,969,489.78

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Solution

The fourth proportional to 455,851,731.75, 683,845,699.99 and 144,969,489.78 is: 217,475,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,851,731.75 : 683,845,699.99 = 144,969,489.78 : x
  2. Step 2: Convert to fraction form
    455,851,731.75/683,845,699.99 = 144,969,489.78/x
  3. Step 3: Cross multiply
    455,851,731.75x = 683,845,699.99 × 144,969,489.78
  4. Step 4: Simplify right side
    455,851,731.75x = 99,136,762,215,797,248
  5. Step 5: Solve for x
    x = 99,136,762,215,797,248/455,851,731.75
  6. Step 6: Final answer
    x = 217,475,892.51

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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.