Home / 28,997,385.20-40,016,536.08-15,945,485.84

Finding the Fourth Proportional to 28,997,385.20, 40,016,536.08 and 15,945,485.84

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Solution

The fourth proportional to 28,997,385.20, 40,016,536.08 and 15,945,485.84 is: 22,004,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997,385.20 : 40,016,536.08 = 15,945,485.84 : x
  2. Step 2: Convert to fraction form
    28,997,385.20/40,016,536.08 = 15,945,485.84/x
  3. Step 3: Cross multiply
    28,997,385.20x = 40,016,536.08 × 15,945,485.84
  4. Step 4: Simplify right side
    28,997,385.20x = 638,083,109,429,489.12
  5. Step 5: Solve for x
    x = 638,083,109,429,489.12/28,997,385.20
  6. Step 6: Final answer
    x = 22,004,849.92

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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.