Home / 385,923,379.91-532,573,859.14-209,710,956.09

Finding the Fourth Proportional to 385,923,379.91, 532,573,859.14 and 209,710,956.09

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Solution

The fourth proportional to 385,923,379.91, 532,573,859.14 and 209,710,956.09 is: 289,400,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,923,379.91 : 532,573,859.14 = 209,710,956.09 : x
  2. Step 2: Convert to fraction form
    385,923,379.91/532,573,859.14 = 209,710,956.09/x
  3. Step 3: Cross multiply
    385,923,379.91x = 532,573,859.14 × 209,710,956.09
  4. Step 4: Simplify right side
    385,923,379.91x = 111,686,573,188,266,112
  5. Step 5: Solve for x
    x = 111,686,573,188,266,112/385,923,379.91
  6. Step 6: Final answer
    x = 289,400,899.25

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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.