Home / 3,218,818,611.79-4,442,009,721.32-1,948,642,735.33

Finding the Fourth Proportional to 3,218,818,611.79, 4,442,009,721.32 and 1,948,642,735.33

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Solution

The fourth proportional to 3,218,818,611.79, 4,442,009,721.32 and 1,948,642,735.33 is: 2,689,151,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,818,611.79 : 4,442,009,721.32 = 1,948,642,735.33 : x
  2. Step 2: Convert to fraction form
    3,218,818,611.79/4,442,009,721.32 = 1,948,642,735.33/x
  3. Step 3: Cross multiply
    3,218,818,611.79x = 4,442,009,721.32 × 1,948,642,735.33
  4. Step 4: Simplify right side
    3,218,818,611.79x = 8,655,889,973,694,607,360
  5. Step 5: Solve for x
    x = 8,655,889,973,694,607,360/3,218,818,611.79
  6. Step 6: Final answer
    x = 2,689,151,212.81

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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.