Home / 20,574,018.40-30,861,027.60-18,684,450.40

Finding the Fourth Proportional to 20,574,018.40, 30,861,027.60 and 18,684,450.40

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Solution

The fourth proportional to 20,574,018.40, 30,861,027.60 and 18,684,450.40 is: 28,026,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574,018.40 : 30,861,027.60 = 18,684,450.40 : x
  2. Step 2: Convert to fraction form
    20,574,018.40/30,861,027.60 = 18,684,450.40/x
  3. Step 3: Cross multiply
    20,574,018.40x = 30,861,027.60 × 18,684,450.40
  4. Step 4: Simplify right side
    20,574,018.40x = 576,621,339,485,231
  5. Step 5: Solve for x
    x = 576,621,339,485,231/20,574,018.40
  6. Step 6: Final answer
    x = 28,026,675.60

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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.