Home / 28,190,749.10-42,281,976.45-7,998,032.30

Finding the Fourth Proportional to 28,190,749.10, 42,281,976.45 and 7,998,032.30

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Solution

The fourth proportional to 28,190,749.10, 42,281,976.45 and 7,998,032.30 is: 11,995,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,749.10 : 42,281,976.45 = 7,998,032.30 : x
  2. Step 2: Convert to fraction form
    28,190,749.10/42,281,976.45 = 7,998,032.30/x
  3. Step 3: Cross multiply
    28,190,749.10x = 42,281,976.45 × 7,998,032.30
  4. Step 4: Simplify right side
    28,190,749.10x = 338,172,613,354,939.38
  5. Step 5: Solve for x
    x = 338,172,613,354,939.38/28,190,749.10
  6. Step 6: Final answer
    x = 11,995,871.84

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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.