Home / 842,042,419.20-1,161,959,548.68-489,593,405.34

Finding the Fourth Proportional to 842,042,419.20, 1,161,959,548.68 and 489,593,405.34

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Solution

The fourth proportional to 842,042,419.20, 1,161,959,548.68 and 489,593,405.34 is: 675,604,600.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,042,419.20 : 1,161,959,548.68 = 489,593,405.34 : x
  2. Step 2: Convert to fraction form
    842,042,419.20/1,161,959,548.68 = 489,593,405.34/x
  3. Step 3: Cross multiply
    842,042,419.20x = 1,161,959,548.68 × 489,593,405.34
  4. Step 4: Simplify right side
    842,042,419.20x = 568,887,732,305,570,688
  5. Step 5: Solve for x
    x = 568,887,732,305,570,688/842,042,419.20
  6. Step 6: Final answer
    x = 675,604,600.59

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1.5x scale

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.