Home / 1,036,253,717.49-1,555,079,970.02-405,907,588.23

Finding the Fourth Proportional to 1,036,253,717.49, 1,555,079,970.02 and 405,907,588.23

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Solution

The fourth proportional to 1,036,253,717.49, 1,555,079,970.02 and 405,907,588.23 is: 609,135,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,253,717.49 : 1,555,079,970.02 = 405,907,588.23 : x
  2. Step 2: Convert to fraction form
    1,036,253,717.49/1,555,079,970.02 = 405,907,588.23/x
  3. Step 3: Cross multiply
    1,036,253,717.49x = 1,555,079,970.02 × 405,907,588.23
  4. Step 4: Simplify right side
    1,036,253,717.49x = 631,218,760,135,598,976
  5. Step 5: Solve for x
    x = 631,218,760,135,598,976/1,036,253,717.49
  6. Step 6: Final answer
    x = 609,135,339.62

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Double scale
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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.