Home / 10,603,507.20-15,909,926.40-4,920,806.40

Finding the Fourth Proportional to 10,603,507.20, 15,909,926.40 and 4,920,806.40

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Solution

The fourth proportional to 10,603,507.20, 15,909,926.40 and 4,920,806.40 is: 7,383,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603,507.20 : 15,909,926.40 = 4,920,806.40 : x
  2. Step 2: Convert to fraction form
    10,603,507.20/15,909,926.40 = 4,920,806.40/x
  3. Step 3: Cross multiply
    10,603,507.20x = 15,909,926.40 × 4,920,806.40
  4. Step 4: Simplify right side
    10,603,507.20x = 78,289,667,652,648.97
  5. Step 5: Solve for x
    x = 78,289,667,652,648.97/10,603,507.20
  6. Step 6: Final answer
    x = 7,383,374.78

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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.