Home / 209,421,814.38-289,033,523.40-159,103,230.90

Finding the Fourth Proportional to 209,421,814.38, 289,033,523.40 and 159,103,230.90

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Solution

The fourth proportional to 209,421,814.38, 289,033,523.40 and 159,103,230.90 is: 219,586,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,421,814.38 : 289,033,523.40 = 159,103,230.90 : x
  2. Step 2: Convert to fraction form
    209,421,814.38/289,033,523.40 = 159,103,230.90/x
  3. Step 3: Cross multiply
    209,421,814.38x = 289,033,523.40 × 159,103,230.90
  4. Step 4: Simplify right side
    209,421,814.38x = 45,986,167,411,350,752
  5. Step 5: Solve for x
    x = 45,986,167,411,350,752/209,421,814.38
  6. Step 6: Final answer
    x = 219,586,328.90

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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.