Home / 28,630,174.28-42,985,617.72-20,538,739.02

Finding the Fourth Proportional to 28,630,174.28, 42,985,617.72 and 20,538,739.02

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Solution

The fourth proportional to 28,630,174.28, 42,985,617.72 and 20,538,739.02 is: 30,837,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630,174.28 : 42,985,617.72 = 20,538,739.02 : x
  2. Step 2: Convert to fraction form
    28,630,174.28/42,985,617.72 = 20,538,739.02/x
  3. Step 3: Cross multiply
    28,630,174.28x = 42,985,617.72 × 20,538,739.02
  4. Step 4: Simplify right side
    28,630,174.28x = 882,870,383,749,639.38
  5. Step 5: Solve for x
    x = 882,870,383,749,639.38/28,630,174.28
  6. Step 6: Final answer
    x = 30,837,059.36

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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.