Home / 20,449,563.60-30,662,681.40-7,670,485.20

Finding the Fourth Proportional to 20,449,563.60, 30,662,681.40 and 7,670,485.20

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Solution

The fourth proportional to 20,449,563.60, 30,662,681.40 and 7,670,485.20 is: 11,501,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449,563.60 : 30,662,681.40 = 7,670,485.20 : x
  2. Step 2: Convert to fraction form
    20,449,563.60/30,662,681.40 = 7,670,485.20/x
  3. Step 3: Cross multiply
    20,449,563.60x = 30,662,681.40 × 7,670,485.20
  4. Step 4: Simplify right side
    20,449,563.60x = 235,197,643,871,015.28
  5. Step 5: Solve for x
    x = 235,197,643,871,015.28/20,449,563.60
  6. Step 6: Final answer
    x = 11,501,352.72

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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.