Home / 657,436,128.66-907,262,741.85-356,021,965.92

Finding the Fourth Proportional to 657,436,128.66, 907,262,741.85 and 356,021,965.92

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Solution

The fourth proportional to 657,436,128.66, 907,262,741.85 and 356,021,965.92 is: 491,310,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,436,128.66 : 907,262,741.85 = 356,021,965.92 : x
  2. Step 2: Convert to fraction form
    657,436,128.66/907,262,741.85 = 356,021,965.92/x
  3. Step 3: Cross multiply
    657,436,128.66x = 907,262,741.85 × 356,021,965.92
  4. Step 4: Simplify right side
    657,436,128.66x = 323,005,464,959,406,464
  5. Step 5: Solve for x
    x = 323,005,464,959,406,464/657,436,128.66
  6. Step 6: Final answer
    x = 491,310,791.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.