Home / 1,639,296,661.80-2,458,944,992.70-670,643,452.20

Finding the Fourth Proportional to 1,639,296,661.80, 2,458,944,992.70 and 670,643,452.20

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Solution

The fourth proportional to 1,639,296,661.80, 2,458,944,992.70 and 670,643,452.20 is: 1,005,965,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,296,661.80 : 2,458,944,992.70 = 670,643,452.20 : x
  2. Step 2: Convert to fraction form
    1,639,296,661.80/2,458,944,992.70 = 670,643,452.20/x
  3. Step 3: Cross multiply
    1,639,296,661.80x = 2,458,944,992.70 × 670,643,452.20
  4. Step 4: Simplify right side
    1,639,296,661.80x = 1,649,075,358,674,231,808
  5. Step 5: Solve for x
    x = 1,649,075,358,674,231,808/1,639,296,661.80
  6. Step 6: Final answer
    x = 1,005,965,178.30

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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.