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Finding the Fourth Proportional to 269,939,110.20, 404,908,665.30 and 259,357,529.40

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Solution

The fourth proportional to 269,939,110.20, 404,908,665.30 and 259,357,529.40 is: 389,036,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,939,110.20 : 404,908,665.30 = 259,357,529.40 : x
  2. Step 2: Convert to fraction form
    269,939,110.20/404,908,665.30 = 259,357,529.40/x
  3. Step 3: Cross multiply
    269,939,110.20x = 404,908,665.30 × 259,357,529.40
  4. Step 4: Simplify right side
    269,939,110.20x = 105,016,111,064,859,520
  5. Step 5: Solve for x
    x = 105,016,111,064,859,520/269,939,110.20
  6. Step 6: Final answer
    x = 389,036,294.10

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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.