Home / 806,936,611.20-1,210,404,916.80-480,419,260.80

Finding the Fourth Proportional to 806,936,611.20, 1,210,404,916.80 and 480,419,260.80

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Solution

The fourth proportional to 806,936,611.20, 1,210,404,916.80 and 480,419,260.80 is: 720,628,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,936,611.20 : 1,210,404,916.80 = 480,419,260.80 : x
  2. Step 2: Convert to fraction form
    806,936,611.20/1,210,404,916.80 = 480,419,260.80/x
  3. Step 3: Cross multiply
    806,936,611.20x = 1,210,404,916.80 × 480,419,260.80
  4. Step 4: Simplify right side
    806,936,611.20x = 581,501,835,397,741,440
  5. Step 5: Solve for x
    x = 581,501,835,397,741,440/806,936,611.20
  6. Step 6: Final answer
    x = 720,628,891.20

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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.