Home / 28,686,405.50-39,588,643.20-16,131,411.75

Finding the Fourth Proportional to 28,686,405.50, 39,588,643.20 and 16,131,411.75

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Solution

The fourth proportional to 28,686,405.50, 39,588,643.20 and 16,131,411.75 is: 22,262,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686,405.50 : 39,588,643.20 = 16,131,411.75 : x
  2. Step 2: Convert to fraction form
    28,686,405.50/39,588,643.20 = 16,131,411.75/x
  3. Step 3: Cross multiply
    28,686,405.50x = 39,588,643.20 × 16,131,411.75
  4. Step 4: Simplify right side
    28,686,405.50x = 638,620,704,083,037.62
  5. Step 5: Solve for x
    x = 638,620,704,083,037.62/28,686,405.50
  6. Step 6: Final answer
    x = 22,262,137.52

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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.