Home / 726,861,860.20-1,090,292,790.30-436,624,215.40

Finding the Fourth Proportional to 726,861,860.20, 1,090,292,790.30 and 436,624,215.40

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Solution

The fourth proportional to 726,861,860.20, 1,090,292,790.30 and 436,624,215.40 is: 654,936,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,861,860.20 : 1,090,292,790.30 = 436,624,215.40 : x
  2. Step 2: Convert to fraction form
    726,861,860.20/1,090,292,790.30 = 436,624,215.40/x
  3. Step 3: Cross multiply
    726,861,860.20x = 1,090,292,790.30 × 436,624,215.40
  4. Step 4: Simplify right side
    726,861,860.20x = 476,048,234,121,014,208
  5. Step 5: Solve for x
    x = 476,048,234,121,014,208/726,861,860.20
  6. Step 6: Final answer
    x = 654,936,323.10

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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.