Home / 20,488,893.90-28,276,285.38-11,668,718.19

Finding the Fourth Proportional to 20,488,893.90, 28,276,285.38 and 11,668,718.19

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Solution

The fourth proportional to 20,488,893.90, 28,276,285.38 and 11,668,718.19 is: 16,103,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,893.90 : 28,276,285.38 = 11,668,718.19 : x
  2. Step 2: Convert to fraction form
    20,488,893.90/28,276,285.38 = 11,668,718.19/x
  3. Step 3: Cross multiply
    20,488,893.90x = 28,276,285.38 × 11,668,718.19
  4. Step 4: Simplify right side
    20,488,893.90x = 329,948,005,559,237.06
  5. Step 5: Solve for x
    x = 329,948,005,559,237.06/20,488,893.90
  6. Step 6: Final answer
    x = 16,103,749.04

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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.