Home / 7,002,861.12-9,664,022.16-3,947,075.28

Finding the Fourth Proportional to 7,002,861.12, 9,664,022.16 and 3,947,075.28

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Solution

The fourth proportional to 7,002,861.12, 9,664,022.16 and 3,947,075.28 is: 5,447,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002,861.12 : 9,664,022.16 = 3,947,075.28 : x
  2. Step 2: Convert to fraction form
    7,002,861.12/9,664,022.16 = 3,947,075.28/x
  3. Step 3: Cross multiply
    7,002,861.12x = 9,664,022.16 × 3,947,075.28
  4. Step 4: Simplify right side
    7,002,861.12x = 38,144,622,973,108.20
  5. Step 5: Solve for x
    x = 38,144,622,973,108.20/7,002,861.12
  6. Step 6: Final answer
    x = 5,447,005.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.