Home / 721,586,195.94-1,082,788,747.94-389,588,784.64

Finding the Fourth Proportional to 721,586,195.94, 1,082,788,747.94 and 389,588,784.64

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Solution

The fourth proportional to 721,586,195.94, 1,082,788,747.94 and 389,588,784.64 is: 584,604,243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,586,195.94 : 1,082,788,747.94 = 389,588,784.64 : x
  2. Step 2: Convert to fraction form
    721,586,195.94/1,082,788,747.94 = 389,588,784.64/x
  3. Step 3: Cross multiply
    721,586,195.94x = 1,082,788,747.94 × 389,588,784.64
  4. Step 4: Simplify right side
    721,586,195.94x = 421,842,352,331,811,904
  5. Step 5: Solve for x
    x = 421,842,352,331,811,904/721,586,195.94
  6. Step 6: Final answer
    x = 584,604,243.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.