Home / 490,651,780.51-677,101,562.14-267,638,322.13

Finding the Fourth Proportional to 490,651,780.51, 677,101,562.14 and 267,638,322.13

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Solution

The fourth proportional to 490,651,780.51, 677,101,562.14 and 267,638,322.13 is: 369,342,032.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,651,780.51 : 677,101,562.14 = 267,638,322.13 : x
  2. Step 2: Convert to fraction form
    490,651,780.51/677,101,562.14 = 267,638,322.13/x
  3. Step 3: Cross multiply
    490,651,780.51x = 677,101,562.14 × 267,638,322.13
  4. Step 4: Simplify right side
    490,651,780.51x = 181,218,326,005,447,904
  5. Step 5: Solve for x
    x = 181,218,326,005,447,904/490,651,780.51
  6. Step 6: Final answer
    x = 369,342,032.79

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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.