Home / 20,883,865.85-28,819,300.61-11,590,890.76

Finding the Fourth Proportional to 20,883,865.85, 28,819,300.61 and 11,590,890.76

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Solution

The fourth proportional to 20,883,865.85, 28,819,300.61 and 11,590,890.76 is: 15,995,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,865.85 : 28,819,300.61 = 11,590,890.76 : x
  2. Step 2: Convert to fraction form
    20,883,865.85/28,819,300.61 = 11,590,890.76/x
  3. Step 3: Cross multiply
    20,883,865.85x = 28,819,300.61 × 11,590,890.76
  4. Step 4: Simplify right side
    20,883,865.85x = 334,041,365,150,111.38
  5. Step 5: Solve for x
    x = 334,041,365,150,111.38/20,883,865.85
  6. Step 6: Final answer
    x = 15,995,188.23

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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.