Home / 791,954,152.50-1,187,976,625.71-209,673,267.50

Finding the Fourth Proportional to 791,954,152.50, 1,187,976,625.71 and 209,673,267.50

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Solution

The fourth proportional to 791,954,152.50, 1,187,976,625.71 and 209,673,267.50 is: 314,521,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,954,152.50 : 1,187,976,625.71 = 209,673,267.50 : x
  2. Step 2: Convert to fraction form
    791,954,152.50/1,187,976,625.71 = 209,673,267.50/x
  3. Step 3: Cross multiply
    791,954,152.50x = 1,187,976,625.71 × 209,673,267.50
  4. Step 4: Simplify right side
    791,954,152.50x = 249,086,940,823,706,848
  5. Step 5: Solve for x
    x = 249,086,940,823,706,848/791,954,152.50
  6. Step 6: Final answer
    x = 314,521,920.29

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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.