Home / 783,941,726.72-1,081,942,599.04-449,545,111.04

Finding the Fourth Proportional to 783,941,726.72, 1,081,942,599.04 and 449,545,111.04

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Solution

The fourth proportional to 783,941,726.72, 1,081,942,599.04 and 449,545,111.04 is: 620,431,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,941,726.72 : 1,081,942,599.04 = 449,545,111.04 : x
  2. Step 2: Convert to fraction form
    783,941,726.72/1,081,942,599.04 = 449,545,111.04/x
  3. Step 3: Cross multiply
    783,941,726.72x = 1,081,942,599.04 × 449,545,111.04
  4. Step 4: Simplify right side
    783,941,726.72x = 486,382,005,824,342,976
  5. Step 5: Solve for x
    x = 486,382,005,824,342,976/783,941,726.72
  6. Step 6: Final answer
    x = 620,431,327.03

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1.5x scale

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.