Home / 23,189,479.71-34,628,059.90-18,938,081.31

Finding the Fourth Proportional to 23,189,479.71, 34,628,059.90 and 18,938,081.31

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Solution

The fourth proportional to 23,189,479.71, 34,628,059.90 and 18,938,081.31 is: 28,279,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,189,479.71 : 34,628,059.90 = 18,938,081.31 : x
  2. Step 2: Convert to fraction form
    23,189,479.71/34,628,059.90 = 18,938,081.31/x
  3. Step 3: Cross multiply
    23,189,479.71x = 34,628,059.90 × 18,938,081.31
  4. Step 4: Simplify right side
    23,189,479.71x = 655,789,013,946,405.25
  5. Step 5: Solve for x
    x = 655,789,013,946,405.25/23,189,479.71
  6. Step 6: Final answer
    x = 28,279,591.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.