Home / 28,065,457-42,098,187.12-6,790,321

Finding the Fourth Proportional to 28,065,457, 42,098,187.12 and 6,790,321

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Solution

The fourth proportional to 28,065,457, 42,098,187.12 and 6,790,321 is: 10,185,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065,457 : 42,098,187.12 = 6,790,321 : x
  2. Step 2: Convert to fraction form
    28,065,457/42,098,187.12 = 6,790,321/x
  3. Step 3: Cross multiply
    28,065,457x = 42,098,187.12 × 6,790,321
  4. Step 4: Simplify right side
    28,065,457x = 285,860,204,062,865.50
  5. Step 5: Solve for x
    x = 285,860,204,062,865.50/28,065,457
  6. Step 6: Final answer
    x = 10,185,481.89

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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.