Home / 378,053,315.83-521,366,863.74-259,148,706.49

Finding the Fourth Proportional to 378,053,315.83, 521,366,863.74 and 259,148,706.49

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Solution

The fourth proportional to 378,053,315.83, 521,366,863.74 and 259,148,706.49 is: 357,387,550.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,053,315.83 : 521,366,863.74 = 259,148,706.49 : x
  2. Step 2: Convert to fraction form
    378,053,315.83/521,366,863.74 = 259,148,706.49/x
  3. Step 3: Cross multiply
    378,053,315.83x = 521,366,863.74 × 259,148,706.49
  4. Step 4: Simplify right side
    378,053,315.83x = 135,111,548,344,969,088
  5. Step 5: Solve for x
    x = 135,111,548,344,969,088/378,053,315.83
  6. Step 6: Final answer
    x = 357,387,550.08

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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.