Home / 8,214,312.20-12,297,848.70-7,978,116.20

Finding the Fourth Proportional to 8,214,312.20, 12,297,848.70 and 7,978,116.20

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Solution

The fourth proportional to 8,214,312.20, 12,297,848.70 and 7,978,116.20 is: 11,944,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214,312.20 : 12,297,848.70 = 7,978,116.20 : x
  2. Step 2: Convert to fraction form
    8,214,312.20/12,297,848.70 = 7,978,116.20/x
  3. Step 3: Cross multiply
    8,214,312.20x = 12,297,848.70 × 7,978,116.20
  4. Step 4: Simplify right side
    8,214,312.20x = 98,113,665,938,618.94
  5. Step 5: Solve for x
    x = 98,113,665,938,618.94/8,214,312.20
  6. Step 6: Final answer
    x = 11,944,233.86

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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.