Home / 20,215,111.40-30,322,667.10-19,683,670.40

Finding the Fourth Proportional to 20,215,111.40, 30,322,667.10 and 19,683,670.40

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Solution

The fourth proportional to 20,215,111.40, 30,322,667.10 and 19,683,670.40 is: 29,525,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,111.40 : 30,322,667.10 = 19,683,670.40 : x
  2. Step 2: Convert to fraction form
    20,215,111.40/30,322,667.10 = 19,683,670.40/x
  3. Step 3: Cross multiply
    20,215,111.40x = 30,322,667.10 × 19,683,670.40
  4. Step 4: Simplify right side
    20,215,111.40x = 596,861,384,845,323.88
  5. Step 5: Solve for x
    x = 596,861,384,845,323.88/20,215,111.40
  6. Step 6: Final answer
    x = 29,525,505.60

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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.