Home / 28,145,993.96-42,222,140.22-8,972,302.52

Finding the Fourth Proportional to 28,145,993.96, 42,222,140.22 and 8,972,302.52

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Solution

The fourth proportional to 28,145,993.96, 42,222,140.22 and 8,972,302.52 is: 13,459,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145,993.96 : 42,222,140.22 = 8,972,302.52 : x
  2. Step 2: Convert to fraction form
    28,145,993.96/42,222,140.22 = 8,972,302.52/x
  3. Step 3: Cross multiply
    28,145,993.96x = 42,222,140.22 × 8,972,302.52
  4. Step 4: Simplify right side
    28,145,993.96x = 378,829,814,921,693
  5. Step 5: Solve for x
    x = 378,829,814,921,693/28,145,993.96
  6. Step 6: Final answer
    x = 13,459,457.69

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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.