Home / 403,985,516.63-557,499,760.98-218,346,532.32

Finding the Fourth Proportional to 403,985,516.63, 557,499,760.98 and 218,346,532.32

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Solution

The fourth proportional to 403,985,516.63, 557,499,760.98 and 218,346,532.32 is: 301,318,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,985,516.63 : 557,499,760.98 = 218,346,532.32 : x
  2. Step 2: Convert to fraction form
    403,985,516.63/557,499,760.98 = 218,346,532.32/x
  3. Step 3: Cross multiply
    403,985,516.63x = 557,499,760.98 × 218,346,532.32
  4. Step 4: Simplify right side
    403,985,516.63x = 121,728,139,579,211,840
  5. Step 5: Solve for x
    x = 121,728,139,579,211,840/403,985,516.63
  6. Step 6: Final answer
    x = 301,318,078.42

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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.