Home / 1,912,347,672.65-2,869,355,871.08-669,670,046.09

Finding the Fourth Proportional to 1,912,347,672.65, 2,869,355,871.08 and 669,670,046.09

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Solution

The fourth proportional to 1,912,347,672.65, 2,869,355,871.08 and 669,670,046.09 is: 1,004,797,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,347,672.65 : 2,869,355,871.08 = 669,670,046.09 : x
  2. Step 2: Convert to fraction form
    1,912,347,672.65/2,869,355,871.08 = 669,670,046.09/x
  3. Step 3: Cross multiply
    1,912,347,672.65x = 2,869,355,871.08 × 669,670,046.09
  4. Step 4: Simplify right side
    1,912,347,672.65x = 1,921,521,678,434,755,840
  5. Step 5: Solve for x
    x = 1,921,521,678,434,755,840/1,912,347,672.65
  6. Step 6: Final answer
    x = 1,004,797,247.86

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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.