Home / 804,435,998.40-1,206,653,997.60-319,761,806.40

Finding the Fourth Proportional to 804,435,998.40, 1,206,653,997.60 and 319,761,806.40

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Solution

The fourth proportional to 804,435,998.40, 1,206,653,997.60 and 319,761,806.40 is: 479,642,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,435,998.40 : 1,206,653,997.60 = 319,761,806.40 : x
  2. Step 2: Convert to fraction form
    804,435,998.40/1,206,653,997.60 = 319,761,806.40/x
  3. Step 3: Cross multiply
    804,435,998.40x = 1,206,653,997.60 × 319,761,806.40
  4. Step 4: Simplify right side
    804,435,998.40x = 385,841,861,972,357,184
  5. Step 5: Solve for x
    x = 385,841,861,972,357,184/804,435,998.40
  6. Step 6: Final answer
    x = 479,642,709.60

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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.