Home / 403,985,484.48-557,499,716.69-218,346,500.17

Finding the Fourth Proportional to 403,985,484.48, 557,499,716.69 and 218,346,500.17

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Solution

The fourth proportional to 403,985,484.48, 557,499,716.69 and 218,346,500.17 is: 301,318,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,985,484.48 : 557,499,716.69 = 218,346,500.17 : x
  2. Step 2: Convert to fraction form
    403,985,484.48/557,499,716.69 = 218,346,500.17/x
  3. Step 3: Cross multiply
    403,985,484.48x = 557,499,716.69 × 218,346,500.17
  4. Step 4: Simplify right side
    403,985,484.48x = 121,728,111,985,028,048
  5. Step 5: Solve for x
    x = 121,728,111,985,028,048/403,985,484.48
  6. Step 6: Final answer
    x = 301,318,034.09

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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.