Home / 339,071,890.20-507,852,008.10-261,977,515.80

Finding the Fourth Proportional to 339,071,890.20, 507,852,008.10 and 261,977,515.80

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Solution

The fourth proportional to 339,071,890.20, 507,852,008.10 and 261,977,515.80 is: 392,382,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,071,890.20 : 507,852,008.10 = 261,977,515.80 : x
  2. Step 2: Convert to fraction form
    339,071,890.20/507,852,008.10 = 261,977,515.80/x
  3. Step 3: Cross multiply
    339,071,890.20x = 507,852,008.10 × 261,977,515.80
  4. Step 4: Simplify right side
    339,071,890.20x = 133,045,807,476,079,488
  5. Step 5: Solve for x
    x = 133,045,807,476,079,488/339,071,890.20
  6. Step 6: Final answer
    x = 392,382,298.04

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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.