Home / 7,188,298.16-9,919,899.50-3,925,135.67

Finding the Fourth Proportional to 7,188,298.16, 9,919,899.50 and 3,925,135.67

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Solution

The fourth proportional to 7,188,298.16, 9,919,899.50 and 3,925,135.67 is: 5,416,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188,298.16 : 9,919,899.50 = 3,925,135.67 : x
  2. Step 2: Convert to fraction form
    7,188,298.16/9,919,899.50 = 3,925,135.67/x
  3. Step 3: Cross multiply
    7,188,298.16x = 9,919,899.50 × 3,925,135.67
  4. Step 4: Simplify right side
    7,188,298.16x = 38,936,951,301,039.98
  5. Step 5: Solve for x
    x = 38,936,951,301,039.98/7,188,298.16
  6. Step 6: Final answer
    x = 5,416,713.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.