Home / 28,884,738.20-39,865,216.93-18,289,112.91

Finding the Fourth Proportional to 28,884,738.20, 39,865,216.93 and 18,289,112.91

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Solution

The fourth proportional to 28,884,738.20, 39,865,216.93 and 18,289,112.91 is: 25,241,684.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884,738.20 : 39,865,216.93 = 18,289,112.91 : x
  2. Step 2: Convert to fraction form
    28,884,738.20/39,865,216.93 = 18,289,112.91/x
  3. Step 3: Cross multiply
    28,884,738.20x = 39,865,216.93 × 18,289,112.91
  4. Step 4: Simplify right side
    28,884,738.20x = 729,099,453,323,641.88
  5. Step 5: Solve for x
    x = 729,099,453,323,641.88/28,884,738.20
  6. Step 6: Final answer
    x = 25,241,684.67

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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.