Home / 28,542,485.40-42,819,257.70-12,368,405.40

Finding the Fourth Proportional to 28,542,485.40, 42,819,257.70 and 12,368,405.40

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Solution

The fourth proportional to 28,542,485.40, 42,819,257.70 and 12,368,405.40 is: 18,555,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542,485.40 : 42,819,257.70 = 12,368,405.40 : x
  2. Step 2: Convert to fraction form
    28,542,485.40/42,819,257.70 = 12,368,405.40/x
  3. Step 3: Cross multiply
    28,542,485.40x = 42,819,257.70 × 12,368,405.40
  4. Step 4: Simplify right side
    28,542,485.40x = 529,605,938,160,671.62
  5. Step 5: Solve for x
    x = 529,605,938,160,671.62/28,542,485.40
  6. Step 6: Final answer
    x = 18,555,004.26

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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.