Home / 28,887,328.60-43,330,992.90-18,683,661.40

Finding the Fourth Proportional to 28,887,328.60, 43,330,992.90 and 18,683,661.40

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Solution

The fourth proportional to 28,887,328.60, 43,330,992.90 and 18,683,661.40 is: 28,025,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887,328.60 : 43,330,992.90 = 18,683,661.40 : x
  2. Step 2: Convert to fraction form
    28,887,328.60/43,330,992.90 = 18,683,661.40/x
  3. Step 3: Cross multiply
    28,887,328.60x = 43,330,992.90 × 18,683,661.40
  4. Step 4: Simplify right side
    28,887,328.60x = 809,581,599,469,404
  5. Step 5: Solve for x
    x = 809,581,599,469,404/28,887,328.60
  6. Step 6: Final answer
    x = 28,025,492.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.