Home / 394,479,676.80-544,397,984.64-218,264,803.20

Finding the Fourth Proportional to 394,479,676.80, 544,397,984.64 and 218,264,803.20

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Solution

The fourth proportional to 394,479,676.80, 544,397,984.64 and 218,264,803.20 is: 301,214,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,479,676.80 : 544,397,984.64 = 218,264,803.20 : x
  2. Step 2: Convert to fraction form
    394,479,676.80/544,397,984.64 = 218,264,803.20/x
  3. Step 3: Cross multiply
    394,479,676.80x = 544,397,984.64 × 218,264,803.20
  4. Step 4: Simplify right side
    394,479,676.80x = 118,822,918,979,926,208
  5. Step 5: Solve for x
    x = 118,822,918,979,926,208/394,479,676.80
  6. Step 6: Final answer
    x = 301,214,298.15

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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.