Home / 641,703,717,678.32-885,572,367,764.96-352,682,221,576.96

Finding the Fourth Proportional to 641,703,717,678.32, 885,572,367,764.96 and 352,682,221,576.96

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Solution

The fourth proportional to 641,703,717,678.32, 885,572,367,764.96 and 352,682,221,576.96 is: 486,713,137,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,703,717,678.32 : 885,572,367,764.96 = 352,682,221,576.96 : x
  2. Step 2: Convert to fraction form
    641,703,717,678.32/885,572,367,764.96 = 352,682,221,576.96/x
  3. Step 3: Cross multiply
    641,703,717,678.32x = 885,572,367,764.96 × 352,682,221,576.96
  4. Step 4: Simplify right side
    641,703,717,678.32x = 312,325,630,030,514,711,691,264
  5. Step 5: Solve for x
    x = 312,325,630,030,514,711,691,264/641,703,717,678.32
  6. Step 6: Final answer
    x = 486,713,137,895.64

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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.