Home / 380,108,477.81-524,549,699.39-206,268,221.81

Finding the Fourth Proportional to 380,108,477.81, 524,549,699.39 and 206,268,221.81

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Solution

The fourth proportional to 380,108,477.81, 524,549,699.39 and 206,268,221.81 is: 284,650,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,108,477.81 : 524,549,699.39 = 206,268,221.81 : x
  2. Step 2: Convert to fraction form
    380,108,477.81/524,549,699.39 = 206,268,221.81/x
  3. Step 3: Cross multiply
    380,108,477.81x = 524,549,699.39 × 206,268,221.81
  4. Step 4: Simplify right side
    380,108,477.81x = 108,197,933,745,972,384
  5. Step 5: Solve for x
    x = 108,197,933,745,972,384/380,108,477.81
  6. Step 6: Final answer
    x = 284,650,146.11

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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.