Home / 621,542,820.16-857,728,962.40-343,084,271.04

Finding the Fourth Proportional to 621,542,820.16, 857,728,962.40 and 343,084,271.04

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Solution

The fourth proportional to 621,542,820.16, 857,728,962.40 and 343,084,271.04 is: 473,456,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,542,820.16 : 857,728,962.40 = 343,084,271.04 : x
  2. Step 2: Convert to fraction form
    621,542,820.16/857,728,962.40 = 343,084,271.04/x
  3. Step 3: Cross multiply
    621,542,820.16x = 857,728,962.40 × 343,084,271.04
  4. Step 4: Simplify right side
    621,542,820.16x = 294,273,315,814,899,584
  5. Step 5: Solve for x
    x = 294,273,315,814,899,584/621,542,820.16
  6. Step 6: Final answer
    x = 473,456,222.60

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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.