Home / 477,638,500.66-716,430,800.31-211,667,611.30

Finding the Fourth Proportional to 477,638,500.66, 716,430,800.31 and 211,667,611.30

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Solution

The fourth proportional to 477,638,500.66, 716,430,800.31 and 211,667,611.30 is: 317,489,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,638,500.66 : 716,430,800.31 = 211,667,611.30 : x
  2. Step 2: Convert to fraction form
    477,638,500.66/716,430,800.31 = 211,667,611.30/x
  3. Step 3: Cross multiply
    477,638,500.66x = 716,430,800.31 × 211,667,611.30
  4. Step 4: Simplify right side
    477,638,500.66x = 151,645,196,163,364,992
  5. Step 5: Solve for x
    x = 151,645,196,163,364,992/477,638,500.66
  6. Step 6: Final answer
    x = 317,489,473.64

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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.