Home / 389,684,611.98-537,765,399.54-213,468,739.38

Finding the Fourth Proportional to 389,684,611.98, 537,765,399.54 and 213,468,739.38

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Solution

The fourth proportional to 389,684,611.98, 537,765,399.54 and 213,468,739.38 is: 294,587,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,684,611.98 : 537,765,399.54 = 213,468,739.38 : x
  2. Step 2: Convert to fraction form
    389,684,611.98/537,765,399.54 = 213,468,739.38/x
  3. Step 3: Cross multiply
    389,684,611.98x = 537,765,399.54 × 213,468,739.38
  4. Step 4: Simplify right side
    389,684,611.98x = 114,796,101,921,985,824
  5. Step 5: Solve for x
    x = 114,796,101,921,985,824/389,684,611.98
  6. Step 6: Final answer
    x = 294,587,208.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.