Home / 842,042,253.70-1,161,959,320.15-489,593,239.71

Finding the Fourth Proportional to 842,042,253.70, 1,161,959,320.15 and 489,593,239.71

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Solution

The fourth proportional to 842,042,253.70, 1,161,959,320.15 and 489,593,239.71 is: 675,604,371.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,042,253.70 : 1,161,959,320.15 = 489,593,239.71 : x
  2. Step 2: Convert to fraction form
    842,042,253.70/1,161,959,320.15 = 489,593,239.71/x
  3. Step 3: Cross multiply
    842,042,253.70x = 1,161,959,320.15 × 489,593,239.71
  4. Step 4: Simplify right side
    842,042,253.70x = 568,887,427,963,467,584
  5. Step 5: Solve for x
    x = 568,887,427,963,467,584/842,042,253.70
  6. Step 6: Final answer
    x = 675,604,371.95

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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.