Home / 211,349,261.40-317,023,892.10-133,865,163.60

Finding the Fourth Proportional to 211,349,261.40, 317,023,892.10 and 133,865,163.60

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Solution

The fourth proportional to 211,349,261.40, 317,023,892.10 and 133,865,163.60 is: 200,797,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,349,261.40 : 317,023,892.10 = 133,865,163.60 : x
  2. Step 2: Convert to fraction form
    211,349,261.40/317,023,892.10 = 133,865,163.60/x
  3. Step 3: Cross multiply
    211,349,261.40x = 317,023,892.10 × 133,865,163.60
  4. Step 4: Simplify right side
    211,349,261.40x = 42,438,455,181,075,248
  5. Step 5: Solve for x
    x = 42,438,455,181,075,248/211,349,261.40
  6. Step 6: Final answer
    x = 200,797,745.40

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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.