Home / 641,703,717,658.67-885,572,367,737.85-352,682,221,557.35

Finding the Fourth Proportional to 641,703,717,658.67, 885,572,367,737.85 and 352,682,221,557.35

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Solution

The fourth proportional to 641,703,717,658.67, 885,572,367,737.85 and 352,682,221,557.35 is: 486,713,137,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,703,717,658.67 : 885,572,367,737.85 = 352,682,221,557.35 : x
  2. Step 2: Convert to fraction form
    641,703,717,658.67/885,572,367,737.85 = 352,682,221,557.35/x
  3. Step 3: Cross multiply
    641,703,717,658.67x = 885,572,367,737.85 × 352,682,221,557.35
  4. Step 4: Simplify right side
    641,703,717,658.67x = 312,325,630,003,587,414,228,992
  5. Step 5: Solve for x
    x = 312,325,630,003,587,414,228,992/641,703,717,658.67
  6. Step 6: Final answer
    x = 486,713,137,868.58

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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.