Home / 28,281,814.24-42,414,978.92-7,806,639.12

Finding the Fourth Proportional to 28,281,814.24, 42,414,978.92 and 7,806,639.12

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Solution

The fourth proportional to 28,281,814.24, 42,414,978.92 and 7,806,639.12 is: 11,707,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281,814.24 : 42,414,978.92 = 7,806,639.12 : x
  2. Step 2: Convert to fraction form
    28,281,814.24/42,414,978.92 = 7,806,639.12/x
  3. Step 3: Cross multiply
    28,281,814.24x = 42,414,978.92 × 7,806,639.12
  4. Step 4: Simplify right side
    28,281,814.24x = 331,118,433,710,847.38
  5. Step 5: Solve for x
    x = 331,118,433,710,847.38/28,281,814.24
  6. Step 6: Final answer
    x = 11,707,821.53

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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.