Home / 13,956,345.21-20,934,525.12-5,318,431.50

Finding the Fourth Proportional to 13,956,345.21, 20,934,525.12 and 5,318,431.50

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Solution

The fourth proportional to 13,956,345.21, 20,934,525.12 and 5,318,431.50 is: 7,977,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956,345.21 : 20,934,525.12 = 5,318,431.50 : x
  2. Step 2: Convert to fraction form
    13,956,345.21/20,934,525.12 = 5,318,431.50/x
  3. Step 3: Cross multiply
    13,956,345.21x = 20,934,525.12 × 5,318,431.50
  4. Step 4: Simplify right side
    13,956,345.21x = 111,338,837,835,749.28
  5. Step 5: Solve for x
    x = 111,338,837,835,749.28/13,956,345.21
  6. Step 6: Final answer
    x = 7,977,650.03

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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.