Home / 13,286,572.40-19,919,215.20-12,223,690.40

Finding the Fourth Proportional to 13,286,572.40, 19,919,215.20 and 12,223,690.40

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Solution

The fourth proportional to 13,286,572.40, 19,919,215.20 and 12,223,690.40 is: 18,325,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,572.40 : 19,919,215.20 = 12,223,690.40 : x
  2. Step 2: Convert to fraction form
    13,286,572.40/19,919,215.20 = 12,223,690.40/x
  3. Step 3: Cross multiply
    13,286,572.40x = 19,919,215.20 × 12,223,690.40
  4. Step 4: Simplify right side
    13,286,572.40x = 243,486,319,615,774.09
  5. Step 5: Solve for x
    x = 243,486,319,615,774.09/13,286,572.40
  6. Step 6: Final answer
    x = 18,325,743.64

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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.