Home / 914,114,841.21-1,370,988,936.54-447,575,253.21

Finding the Fourth Proportional to 914,114,841.21, 1,370,988,936.54 and 447,575,253.21

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Solution

The fourth proportional to 914,114,841.21, 1,370,988,936.54 and 447,575,253.21 is: 671,273,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,114,841.21 : 1,370,988,936.54 = 447,575,253.21 : x
  2. Step 2: Convert to fraction form
    914,114,841.21/1,370,988,936.54 = 447,575,253.21/x
  3. Step 3: Cross multiply
    914,114,841.21x = 1,370,988,936.54 × 447,575,253.21
  4. Step 4: Simplify right side
    914,114,841.21x = 613,620,720,419,999,104
  5. Step 5: Solve for x
    x = 613,620,720,419,999,104/914,114,841.21
  6. Step 6: Final answer
    x = 671,273,118.82

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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.