Home / 20,218,277.20-30,327,415.80-12,565,526.80

Finding the Fourth Proportional to 20,218,277.20, 30,327,415.80 and 12,565,526.80

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Solution

The fourth proportional to 20,218,277.20, 30,327,415.80 and 12,565,526.80 is: 18,848,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,277.20 : 30,327,415.80 = 12,565,526.80 : x
  2. Step 2: Convert to fraction form
    20,218,277.20/30,327,415.80 = 12,565,526.80/x
  3. Step 3: Cross multiply
    20,218,277.20x = 30,327,415.80 × 12,565,526.80
  4. Step 4: Simplify right side
    20,218,277.20x = 381,079,956,009,643.50
  5. Step 5: Solve for x
    x = 381,079,956,009,643.50/20,218,277.20
  6. Step 6: Final answer
    x = 18,848,290.20

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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.