Home / 791,457,873.82-1,185,976,164.04-423,045,257.92

Finding the Fourth Proportional to 791,457,873.82, 1,185,976,164.04 and 423,045,257.92

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Solution

The fourth proportional to 791,457,873.82, 1,185,976,164.04 and 423,045,257.92 is: 633,920,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,457,873.82 : 1,185,976,164.04 = 423,045,257.92 : x
  2. Step 2: Convert to fraction form
    791,457,873.82/1,185,976,164.04 = 423,045,257.92/x
  3. Step 3: Cross multiply
    791,457,873.82x = 1,185,976,164.04 × 423,045,257.92
  4. Step 4: Simplify right side
    791,457,873.82x = 501,721,592,199,251,456
  5. Step 5: Solve for x
    x = 501,721,592,199,251,456/791,457,873.82
  6. Step 6: Final answer
    x = 633,920,779.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.