Home / 13,971,311.70-20,956,967.55-12,291,695.70

Finding the Fourth Proportional to 13,971,311.70, 20,956,967.55 and 12,291,695.70

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Solution

The fourth proportional to 13,971,311.70, 20,956,967.55 and 12,291,695.70 is: 18,437,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971,311.70 : 20,956,967.55 = 12,291,695.70 : x
  2. Step 2: Convert to fraction form
    13,971,311.70/20,956,967.55 = 12,291,695.70/x
  3. Step 3: Cross multiply
    13,971,311.70x = 20,956,967.55 × 12,291,695.70
  4. Step 4: Simplify right side
    13,971,311.70x = 257,596,667,919,374.53
  5. Step 5: Solve for x
    x = 257,596,667,919,374.53/13,971,311.70
  6. Step 6: Final answer
    x = 18,437,543.55

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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.