Home / 673,840,915.80-1,009,965,111.30-285,662,995.80

Finding the Fourth Proportional to 673,840,915.80, 1,009,965,111.30 and 285,662,995.80

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Solution

The fourth proportional to 673,840,915.80, 1,009,965,111.30 and 285,662,995.80 is: 428,156,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,840,915.80 : 1,009,965,111.30 = 285,662,995.80 : x
  2. Step 2: Convert to fraction form
    673,840,915.80/1,009,965,111.30 = 285,662,995.80/x
  3. Step 3: Cross multiply
    673,840,915.80x = 1,009,965,111.30 × 285,662,995.80
  4. Step 4: Simplify right side
    673,840,915.80x = 288,509,659,347,438,400
  5. Step 5: Solve for x
    x = 288,509,659,347,438,400/673,840,915.80
  6. Step 6: Final answer
    x = 428,156,932.27

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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.