Home / 20,578,072.12-30,840,199.88-8,433,316.67

Finding the Fourth Proportional to 20,578,072.12, 30,840,199.88 and 8,433,316.67

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Solution

The fourth proportional to 20,578,072.12, 30,840,199.88 and 8,433,316.67 is: 12,638,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578,072.12 : 30,840,199.88 = 8,433,316.67 : x
  2. Step 2: Convert to fraction form
    20,578,072.12/30,840,199.88 = 8,433,316.67/x
  3. Step 3: Cross multiply
    20,578,072.12x = 30,840,199.88 × 8,433,316.67
  4. Step 4: Simplify right side
    20,578,072.12x = 260,085,171,802,421.72
  5. Step 5: Solve for x
    x = 260,085,171,802,421.72/20,578,072.12
  6. Step 6: Final answer
    x = 12,638,947.43

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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.