Home / 20,909,136.01-28,849,389.22-12,537,819.75

Finding the Fourth Proportional to 20,909,136.01, 28,849,389.22 and 12,537,819.75

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Solution

The fourth proportional to 20,909,136.01, 28,849,389.22 and 12,537,819.75 is: 17,299,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909,136.01 : 28,849,389.22 = 12,537,819.75 : x
  2. Step 2: Convert to fraction form
    20,909,136.01/28,849,389.22 = 12,537,819.75/x
  3. Step 3: Cross multiply
    20,909,136.01x = 28,849,389.22 × 12,537,819.75
  4. Step 4: Simplify right side
    20,909,136.01x = 361,708,441,934,789.12
  5. Step 5: Solve for x
    x = 361,708,441,934,789.12/20,909,136.01
  6. Step 6: Final answer
    x = 17,299,062.09

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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.