Home / 20,443,138.32-30,592,727.39-12,770,396.01

Finding the Fourth Proportional to 20,443,138.32, 30,592,727.39 and 12,770,396.01

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Solution

The fourth proportional to 20,443,138.32, 30,592,727.39 and 12,770,396.01 is: 19,110,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443,138.32 : 30,592,727.39 = 12,770,396.01 : x
  2. Step 2: Convert to fraction form
    20,443,138.32/30,592,727.39 = 12,770,396.01/x
  3. Step 3: Cross multiply
    20,443,138.32x = 30,592,727.39 × 12,770,396.01
  4. Step 4: Simplify right side
    20,443,138.32x = 390,681,243,828,199.69
  5. Step 5: Solve for x
    x = 390,681,243,828,199.69/20,443,138.32
  6. Step 6: Final answer
    x = 19,110,629.57

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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.