Home / 13,429,774.08-18,533,111.85-7,318,202.58

Finding the Fourth Proportional to 13,429,774.08, 18,533,111.85 and 7,318,202.58

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Solution

The fourth proportional to 13,429,774.08, 18,533,111.85 and 7,318,202.58 is: 10,099,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429,774.08 : 18,533,111.85 = 7,318,202.58 : x
  2. Step 2: Convert to fraction form
    13,429,774.08/18,533,111.85 = 7,318,202.58/x
  3. Step 3: Cross multiply
    13,429,774.08x = 18,533,111.85 × 7,318,202.58
  4. Step 4: Simplify right side
    13,429,774.08x = 135,629,066,956,098.58
  5. Step 5: Solve for x
    x = 135,629,066,956,098.58/13,429,774.08
  6. Step 6: Final answer
    x = 10,099,132.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.