Home / 20,736,009.60-31,104,014.40-18,081,801.60

Finding the Fourth Proportional to 20,736,009.60, 31,104,014.40 and 18,081,801.60

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Solution

The fourth proportional to 20,736,009.60, 31,104,014.40 and 18,081,801.60 is: 27,122,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,009.60 : 31,104,014.40 = 18,081,801.60 : x
  2. Step 2: Convert to fraction form
    20,736,009.60/31,104,014.40 = 18,081,801.60/x
  3. Step 3: Cross multiply
    20,736,009.60x = 31,104,014.40 × 18,081,801.60
  4. Step 4: Simplify right side
    20,736,009.60x = 562,416,617,344,343.06
  5. Step 5: Solve for x
    x = 562,416,617,344,343.06/20,736,009.60
  6. Step 6: Final answer
    x = 27,122,702.40

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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.