Home / 28,859,636.86-39,826,320.36-15,628,916.50

Finding the Fourth Proportional to 28,859,636.86, 39,826,320.36 and 15,628,916.50

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Solution

The fourth proportional to 28,859,636.86, 39,826,320.36 and 15,628,916.50 is: 21,567,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859,636.86 : 39,826,320.36 = 15,628,916.50 : x
  2. Step 2: Convert to fraction form
    28,859,636.86/39,826,320.36 = 15,628,916.50/x
  3. Step 3: Cross multiply
    28,859,636.86x = 39,826,320.36 × 15,628,916.50
  4. Step 4: Simplify right side
    28,859,636.86x = 622,442,235,408,689.88
  5. Step 5: Solve for x
    x = 622,442,235,408,689.88/28,859,636.86
  6. Step 6: Final answer
    x = 21,567,916.41

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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.