Home / 42,585,596.40-63,855,066.60-20,972,670.96

Finding the Fourth Proportional to 42,585,596.40, 63,855,066.60 and 20,972,670.96

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Solution

The fourth proportional to 42,585,596.40, 63,855,066.60 and 20,972,670.96 is: 31,447,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585,596.40 : 63,855,066.60 = 20,972,670.96 : x
  2. Step 2: Convert to fraction form
    42,585,596.40/63,855,066.60 = 20,972,670.96/x
  3. Step 3: Cross multiply
    42,585,596.40x = 63,855,066.60 × 20,972,670.96
  4. Step 4: Simplify right side
    42,585,596.40x = 1,339,211,300,930,686
  5. Step 5: Solve for x
    x = 1,339,211,300,930,686/42,585,596.40
  6. Step 6: Final answer
    x = 31,447,517.80

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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.