Home / 20,157,569.65-27,816,644.73-11,900,291.80

Finding the Fourth Proportional to 20,157,569.65, 27,816,644.73 and 11,900,291.80

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Solution

The fourth proportional to 20,157,569.65, 27,816,644.73 and 11,900,291.80 is: 16,421,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,569.65 : 27,816,644.73 = 11,900,291.80 : x
  2. Step 2: Convert to fraction form
    20,157,569.65/27,816,644.73 = 11,900,291.80/x
  3. Step 3: Cross multiply
    20,157,569.65x = 27,816,644.73 × 11,900,291.80
  4. Step 4: Simplify right side
    20,157,569.65x = 331,026,189,044,849
  5. Step 5: Solve for x
    x = 331,026,189,044,849/20,157,569.65
  6. Step 6: Final answer
    x = 16,421,929.57

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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.