Home / 18,985,856.40-28,480,112.88-9,398,660.76

Finding the Fourth Proportional to 18,985,856.40, 28,480,112.88 and 9,398,660.76

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Solution

The fourth proportional to 18,985,856.40, 28,480,112.88 and 9,398,660.76 is: 14,098,648.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985,856.40 : 28,480,112.88 = 9,398,660.76 : x
  2. Step 2: Convert to fraction form
    18,985,856.40/28,480,112.88 = 9,398,660.76/x
  3. Step 3: Cross multiply
    18,985,856.40x = 28,480,112.88 × 9,398,660.76
  4. Step 4: Simplify right side
    18,985,856.40x = 267,674,919,365,626.56
  5. Step 5: Solve for x
    x = 267,674,919,365,626.56/18,985,856.40
  6. Step 6: Final answer
    x = 14,098,648.68

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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.