Home / 20,190,538.60-30,285,807.90-18,174,999.40

Finding the Fourth Proportional to 20,190,538.60, 30,285,807.90 and 18,174,999.40

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Solution

The fourth proportional to 20,190,538.60, 30,285,807.90 and 18,174,999.40 is: 27,262,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,538.60 : 30,285,807.90 = 18,174,999.40 : x
  2. Step 2: Convert to fraction form
    20,190,538.60/30,285,807.90 = 18,174,999.40/x
  3. Step 3: Cross multiply
    20,190,538.60x = 30,285,807.90 × 18,174,999.40
  4. Step 4: Simplify right side
    20,190,538.60x = 550,444,540,411,015.19
  5. Step 5: Solve for x
    x = 550,444,540,411,015.19/20,190,538.60
  6. Step 6: Final answer
    x = 27,262,499.10

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1.5x scale

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.