Home / 519,728,867.40-780,034,200.30-213,240,937.80

Finding the Fourth Proportional to 519,728,867.40, 780,034,200.30 and 213,240,937.80

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Solution

The fourth proportional to 519,728,867.40, 780,034,200.30 and 213,240,937.80 is: 320,042,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,728,867.40 : 780,034,200.30 = 213,240,937.80 : x
  2. Step 2: Convert to fraction form
    519,728,867.40/780,034,200.30 = 213,240,937.80/x
  3. Step 3: Cross multiply
    519,728,867.40x = 780,034,200.30 × 213,240,937.80
  4. Step 4: Simplify right side
    519,728,867.40x = 166,335,224,388,045,056
  5. Step 5: Solve for x
    x = 166,335,224,388,045,056/519,728,867.40
  6. Step 6: Final answer
    x = 320,042,304.40

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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.