Home / 1,289,136,377.21-1,932,912,660.89-501,271,664.15

Finding the Fourth Proportional to 1,289,136,377.21, 1,932,912,660.89 and 501,271,664.15

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Solution

The fourth proportional to 1,289,136,377.21, 1,932,912,660.89 and 501,271,664.15 is: 751,599,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,136,377.21 : 1,932,912,660.89 = 501,271,664.15 : x
  2. Step 2: Convert to fraction form
    1,289,136,377.21/1,932,912,660.89 = 501,271,664.15/x
  3. Step 3: Cross multiply
    1,289,136,377.21x = 1,932,912,660.89 × 501,271,664.15
  4. Step 4: Simplify right side
    1,289,136,377.21x = 968,914,346,187,020,288
  5. Step 5: Solve for x
    x = 968,914,346,187,020,288/1,289,136,377.21
  6. Step 6: Final answer
    x = 751,599,569.54

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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.