Home / 1,211,383,004.10-1,812,894,128.55-727,056,399.30

Finding the Fourth Proportional to 1,211,383,004.10, 1,812,894,128.55 and 727,056,399.30

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Solution

The fourth proportional to 1,211,383,004.10, 1,812,894,128.55 and 727,056,399.30 is: 1,088,075,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,383,004.10 : 1,812,894,128.55 = 727,056,399.30 : x
  2. Step 2: Convert to fraction form
    1,211,383,004.10/1,812,894,128.55 = 727,056,399.30/x
  3. Step 3: Cross multiply
    1,211,383,004.10x = 1,812,894,128.55 × 727,056,399.30
  4. Step 4: Simplify right side
    1,211,383,004.10x = 1,318,076,277,415,674,112
  5. Step 5: Solve for x
    x = 1,318,076,277,415,674,112/1,211,383,004.10
  6. Step 6: Final answer
    x = 1,088,075,590.42

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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.