Home / 304,693,167.72-420,605,299.76-205,708,000.42

Finding the Fourth Proportional to 304,693,167.72, 420,605,299.76 and 205,708,000.42

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Solution

The fourth proportional to 304,693,167.72, 420,605,299.76 and 205,708,000.42 is: 283,963,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,693,167.72 : 420,605,299.76 = 205,708,000.42 : x
  2. Step 2: Convert to fraction form
    304,693,167.72/420,605,299.76 = 205,708,000.42/x
  3. Step 3: Cross multiply
    304,693,167.72x = 420,605,299.76 × 205,708,000.42
  4. Step 4: Simplify right side
    304,693,167.72x = 86,521,875,179,177,312
  5. Step 5: Solve for x
    x = 86,521,875,179,177,312/304,693,167.72
  6. Step 6: Final answer
    x = 283,963,949.13

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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.