Home / 1,179,936,698.80-1,769,905,048.20-812,604,679.60

Finding the Fourth Proportional to 1,179,936,698.80, 1,769,905,048.20 and 812,604,679.60

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Solution

The fourth proportional to 1,179,936,698.80, 1,769,905,048.20 and 812,604,679.60 is: 1,218,907,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,936,698.80 : 1,769,905,048.20 = 812,604,679.60 : x
  2. Step 2: Convert to fraction form
    1,179,936,698.80/1,769,905,048.20 = 812,604,679.60/x
  3. Step 3: Cross multiply
    1,179,936,698.80x = 1,769,905,048.20 × 812,604,679.60
  4. Step 4: Simplify right side
    1,179,936,698.80x = 1,438,233,124,614,983,680
  5. Step 5: Solve for x
    x = 1,438,233,124,614,983,680/1,179,936,698.80
  6. Step 6: Final answer
    x = 1,218,907,019.40

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1.5x scale

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.