Home / 749,261,859.09-1,123,505,536.54-328,911,186.21

Finding the Fourth Proportional to 749,261,859.09, 1,123,505,536.54 and 328,911,186.21

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Solution

The fourth proportional to 749,261,859.09, 1,123,505,536.54 and 328,911,186.21 is: 493,196,783.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,261,859.09 : 1,123,505,536.54 = 328,911,186.21 : x
  2. Step 2: Convert to fraction form
    749,261,859.09/1,123,505,536.54 = 328,911,186.21/x
  3. Step 3: Cross multiply
    749,261,859.09x = 1,123,505,536.54 × 328,911,186.21
  4. Step 4: Simplify right side
    749,261,859.09x = 369,533,538,738,161,344
  5. Step 5: Solve for x
    x = 369,533,538,738,161,344/749,261,859.09
  6. Step 6: Final answer
    x = 493,196,783.28

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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.