Home / 1,981,724,971.52-2,970,623,959.36-930,581,525.28

Finding the Fourth Proportional to 1,981,724,971.52, 2,970,623,959.36 and 930,581,525.28

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Solution

The fourth proportional to 1,981,724,971.52, 2,970,623,959.36 and 930,581,525.28 is: 1,394,950,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,724,971.52 : 2,970,623,959.36 = 930,581,525.28 : x
  2. Step 2: Convert to fraction form
    1,981,724,971.52/2,970,623,959.36 = 930,581,525.28/x
  3. Step 3: Cross multiply
    1,981,724,971.52x = 2,970,623,959.36 × 930,581,525.28
  4. Step 4: Simplify right side
    1,981,724,971.52x = 2,764,407,775,134,541,824
  5. Step 5: Solve for x
    x = 2,764,407,775,134,541,824/1,981,724,971.52
  6. Step 6: Final answer
    x = 1,394,950,265.48

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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.