Home / 13,206,538.80-19,809,808.20-12,030,807.60

Finding the Fourth Proportional to 13,206,538.80, 19,809,808.20 and 12,030,807.60

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Solution

The fourth proportional to 13,206,538.80, 19,809,808.20 and 12,030,807.60 is: 18,046,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,538.80 : 19,809,808.20 = 12,030,807.60 : x
  2. Step 2: Convert to fraction form
    13,206,538.80/19,809,808.20 = 12,030,807.60/x
  3. Step 3: Cross multiply
    13,206,538.80x = 19,809,808.20 × 12,030,807.60
  4. Step 4: Simplify right side
    13,206,538.80x = 238,327,991,047,102.31
  5. Step 5: Solve for x
    x = 238,327,991,047,102.31/13,206,538.80
  6. Step 6: Final answer
    x = 18,046,211.40

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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.