Home / 749,840,179.80-1,124,928,231.30-289,737,370.20

Finding the Fourth Proportional to 749,840,179.80, 1,124,928,231.30 and 289,737,370.20

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Solution

The fourth proportional to 749,840,179.80, 1,124,928,231.30 and 289,737,370.20 is: 434,670,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,840,179.80 : 1,124,928,231.30 = 289,737,370.20 : x
  2. Step 2: Convert to fraction form
    749,840,179.80/1,124,928,231.30 = 289,737,370.20/x
  3. Step 3: Cross multiply
    749,840,179.80x = 1,124,928,231.30 × 289,737,370.20
  4. Step 4: Simplify right side
    749,840,179.80x = 325,933,747,400,599,296
  5. Step 5: Solve for x
    x = 325,933,747,400,599,296/749,840,179.80
  6. Step 6: Final answer
    x = 434,670,955.47

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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.