Home / 403,708,616.55-557,118,134.97-218,069,714.25

Finding the Fourth Proportional to 403,708,616.55, 557,118,134.97 and 218,069,714.25

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Solution

The fourth proportional to 403,708,616.55, 557,118,134.97 and 218,069,714.25 is: 300,936,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,708,616.55 : 557,118,134.97 = 218,069,714.25 : x
  2. Step 2: Convert to fraction form
    403,708,616.55/557,118,134.97 = 218,069,714.25/x
  3. Step 3: Cross multiply
    403,708,616.55x = 557,118,134.97 × 218,069,714.25
  4. Step 4: Simplify right side
    403,708,616.55x = 121,490,592,496,400,832
  5. Step 5: Solve for x
    x = 121,490,592,496,400,832/403,708,616.55
  6. Step 6: Final answer
    x = 300,936,337.54

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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.