Home / 31,135,004.76-46,702,673.40-20,420,157.72

Finding the Fourth Proportional to 31,135,004.76, 46,702,673.40 and 20,420,157.72

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Solution

The fourth proportional to 31,135,004.76, 46,702,673.40 and 20,420,157.72 is: 30,630,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135,004.76 : 46,702,673.40 = 20,420,157.72 : x
  2. Step 2: Convert to fraction form
    31,135,004.76/46,702,673.40 = 20,420,157.72/x
  3. Step 3: Cross multiply
    31,135,004.76x = 46,702,673.40 × 20,420,157.72
  4. Step 4: Simplify right side
    31,135,004.76x = 953,675,956,773,648.50
  5. Step 5: Solve for x
    x = 953,675,956,773,648.50/31,135,004.76
  6. Step 6: Final answer
    x = 30,630,345.62

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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.