Home / 20,736,054.40-31,104,081.60-18,342,601.60

Finding the Fourth Proportional to 20,736,054.40, 31,104,081.60 and 18,342,601.60

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Solution

The fourth proportional to 20,736,054.40, 31,104,081.60 and 18,342,601.60 is: 27,513,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,054.40 : 31,104,081.60 = 18,342,601.60 : x
  2. Step 2: Convert to fraction form
    20,736,054.40/31,104,081.60 = 18,342,601.60/x
  3. Step 3: Cross multiply
    20,736,054.40x = 31,104,081.60 × 18,342,601.60
  4. Step 4: Simplify right side
    20,736,054.40x = 570,529,776,922,690.62
  5. Step 5: Solve for x
    x = 570,529,776,922,690.62/20,736,054.40
  6. Step 6: Final answer
    x = 27,513,902.40

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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.