Home / 641,703,717,905.58-885,572,368,078.42-352,682,221,804.24

Finding the Fourth Proportional to 641,703,717,905.58, 885,572,368,078.42 and 352,682,221,804.24

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Solution

The fourth proportional to 641,703,717,905.58, 885,572,368,078.42 and 352,682,221,804.24 is: 486,713,138,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,703,717,905.58 : 885,572,368,078.42 = 352,682,221,804.24 : x
  2. Step 2: Convert to fraction form
    641,703,717,905.58/885,572,368,078.42 = 352,682,221,804.24/x
  3. Step 3: Cross multiply
    641,703,717,905.58x = 885,572,368,078.42 × 352,682,221,804.24
  4. Step 4: Simplify right side
    641,703,717,905.58x = 312,325,630,342,339,403,710,464
  5. Step 5: Solve for x
    x = 312,325,630,342,339,403,710,464/641,703,717,905.58
  6. Step 6: Final answer
    x = 486,713,138,209.21

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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.