Home / 641,703,717,656.70-885,572,367,735.10-352,682,221,555.35

Finding the Fourth Proportional to 641,703,717,656.70, 885,572,367,735.10 and 352,682,221,555.35

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Solution

The fourth proportional to 641,703,717,656.70, 885,572,367,735.10 and 352,682,221,555.35 is: 486,713,137,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,703,717,656.70 : 885,572,367,735.10 = 352,682,221,555.35 : x
  2. Step 2: Convert to fraction form
    641,703,717,656.70/885,572,367,735.10 = 352,682,221,555.35/x
  3. Step 3: Cross multiply
    641,703,717,656.70x = 885,572,367,735.10 × 352,682,221,555.35
  4. Step 4: Simplify right side
    641,703,717,656.70x = 312,325,630,000,846,419,787,776
  5. Step 5: Solve for x
    x = 312,325,630,000,846,419,787,776/641,703,717,656.70
  6. Step 6: Final answer
    x = 486,713,137,865.81

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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.