Home / 342,138,619.80-512,074,188.90-314,928,840.60

Finding the Fourth Proportional to 342,138,619.80, 512,074,188.90 and 314,928,840.60

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Solution

The fourth proportional to 342,138,619.80, 512,074,188.90 and 314,928,840.60 is: 471,349,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,138,619.80 : 512,074,188.90 = 314,928,840.60 : x
  2. Step 2: Convert to fraction form
    342,138,619.80/512,074,188.90 = 314,928,840.60/x
  3. Step 3: Cross multiply
    342,138,619.80x = 512,074,188.90 × 314,928,840.60
  4. Step 4: Simplify right side
    342,138,619.80x = 161,266,930,611,462,400
  5. Step 5: Solve for x
    x = 161,266,930,611,462,400/342,138,619.80
  6. Step 6: Final answer
    x = 471,349,684.83

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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.