Home / 704,540,987.53-1,056,804,752.05-428,268,480.44

Finding the Fourth Proportional to 704,540,987.53, 1,056,804,752.05 and 428,268,480.44

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Solution

The fourth proportional to 704,540,987.53, 1,056,804,752.05 and 428,268,480.44 is: 642,398,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,540,987.53 : 1,056,804,752.05 = 428,268,480.44 : x
  2. Step 2: Convert to fraction form
    704,540,987.53/1,056,804,752.05 = 428,268,480.44/x
  3. Step 3: Cross multiply
    704,540,987.53x = 1,056,804,752.05 × 428,268,480.44
  4. Step 4: Simplify right side
    704,540,987.53x = 452,596,165,275,869,760
  5. Step 5: Solve for x
    x = 452,596,165,275,869,760/704,540,987.53
  6. Step 6: Final answer
    x = 642,398,630.16

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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.