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Finding the Fourth Proportional to 557,674,340.97, 769,586,333.67 and 306,773,330.43

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Solution

The fourth proportional to 557,674,340.97, 769,586,333.67 and 306,773,330.43 is: 423,344,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,674,340.97 : 769,586,333.67 = 306,773,330.43 : x
  2. Step 2: Convert to fraction form
    557,674,340.97/769,586,333.67 = 306,773,330.43/x
  3. Step 3: Cross multiply
    557,674,340.97x = 769,586,333.67 × 306,773,330.43
  4. Step 4: Simplify right side
    557,674,340.97x = 236,088,562,633,359,136
  5. Step 5: Solve for x
    x = 236,088,562,633,359,136/557,674,340.97
  6. Step 6: Final answer
    x = 423,344,854.32

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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.