Home / 28,961,143.10-39,956,620.74-16,400,477.65

Finding the Fourth Proportional to 28,961,143.10, 39,956,620.74 and 16,400,477.65

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Solution

The fourth proportional to 28,961,143.10, 39,956,620.74 and 16,400,477.65 is: 22,627,133.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961,143.10 : 39,956,620.74 = 16,400,477.65 : x
  2. Step 2: Convert to fraction form
    28,961,143.10/39,956,620.74 = 16,400,477.65/x
  3. Step 3: Cross multiply
    28,961,143.10x = 39,956,620.74 × 16,400,477.65
  4. Step 4: Simplify right side
    28,961,143.10x = 655,307,665,415,896.50
  5. Step 5: Solve for x
    x = 655,307,665,415,896.50/28,961,143.10
  6. Step 6: Final answer
    x = 22,627,133.99

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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.