Home / 677,694,930.96-1,016,972,420.88-289,520,681.28

Finding the Fourth Proportional to 677,694,930.96, 1,016,972,420.88 and 289,520,681.28

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Solution

The fourth proportional to 677,694,930.96, 1,016,972,420.88 and 289,520,681.28 is: 434,464,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,694,930.96 : 1,016,972,420.88 = 289,520,681.28 : x
  2. Step 2: Convert to fraction form
    677,694,930.96/1,016,972,420.88 = 289,520,681.28/x
  3. Step 3: Cross multiply
    677,694,930.96x = 1,016,972,420.88 × 289,520,681.28
  4. Step 4: Simplify right side
    677,694,930.96x = 294,434,548,136,148,480
  5. Step 5: Solve for x
    x = 294,434,548,136,148,480/677,694,930.96
  6. Step 6: Final answer
    x = 434,464,734.33

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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.