Home / 18,899,217.76-28,349,044.23-7,971,254.60

Finding the Fourth Proportional to 18,899,217.76, 28,349,044.23 and 7,971,254.60

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Solution

The fourth proportional to 18,899,217.76, 28,349,044.23 and 7,971,254.60 is: 11,956,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899,217.76 : 28,349,044.23 = 7,971,254.60 : x
  2. Step 2: Convert to fraction form
    18,899,217.76/28,349,044.23 = 7,971,254.60/x
  3. Step 3: Cross multiply
    18,899,217.76x = 28,349,044.23 × 7,971,254.60
  4. Step 4: Simplify right side
    18,899,217.76x = 225,977,449,204,347.84
  5. Step 5: Solve for x
    x = 225,977,449,204,347.84/18,899,217.76
  6. Step 6: Final answer
    x = 11,956,973.68

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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.