Home / 1,639,075,995.12-2,458,618,191.72-669,727,611.12

Finding the Fourth Proportional to 1,639,075,995.12, 2,458,618,191.72 and 669,727,611.12

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Solution

The fourth proportional to 1,639,075,995.12, 2,458,618,191.72 and 669,727,611.12 is: 1,004,593,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,075,995.12 : 2,458,618,191.72 = 669,727,611.12 : x
  2. Step 2: Convert to fraction form
    1,639,075,995.12/2,458,618,191.72 = 669,727,611.12/x
  3. Step 3: Cross multiply
    1,639,075,995.12x = 2,458,618,191.72 × 669,727,611.12
  4. Step 4: Simplify right side
    1,639,075,995.12x = 1,646,604,488,196,809,728
  5. Step 5: Solve for x
    x = 1,646,604,488,196,809,728/1,639,075,995.12
  6. Step 6: Final answer
    x = 1,004,593,132.41

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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.