Home / 403,985,483.48-557,499,715.31-218,346,499.17

Finding the Fourth Proportional to 403,985,483.48, 557,499,715.31 and 218,346,499.17

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Solution

The fourth proportional to 403,985,483.48, 557,499,715.31 and 218,346,499.17 is: 301,318,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,985,483.48 : 557,499,715.31 = 218,346,499.17 : x
  2. Step 2: Convert to fraction form
    403,985,483.48/557,499,715.31 = 218,346,499.17/x
  3. Step 3: Cross multiply
    403,985,483.48x = 557,499,715.31 × 218,346,499.17
  4. Step 4: Simplify right side
    403,985,483.48x = 121,728,111,124,576,880
  5. Step 5: Solve for x
    x = 121,728,111,124,576,880/403,985,483.48
  6. Step 6: Final answer
    x = 301,318,032.71

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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.