Home / 20,488,885.60-28,276,273.93-11,668,709.85

Finding the Fourth Proportional to 20,488,885.60, 28,276,273.93 and 11,668,709.85

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Solution

The fourth proportional to 20,488,885.60, 28,276,273.93 and 11,668,709.85 is: 16,103,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,885.60 : 28,276,273.93 = 11,668,709.85 : x
  2. Step 2: Convert to fraction form
    20,488,885.60/28,276,273.93 = 11,668,709.85/x
  3. Step 3: Cross multiply
    20,488,885.60x = 28,276,273.93 × 11,668,709.85
  4. Step 4: Simplify right side
    20,488,885.60x = 329,947,636,128,289.19
  5. Step 5: Solve for x
    x = 329,947,636,128,289.19/20,488,885.60
  6. Step 6: Final answer
    x = 16,103,737.54

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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.