Home / 1,868,946,049.80-2,803,419,074.70-778,287,400.20

Finding the Fourth Proportional to 1,868,946,049.80, 2,803,419,074.70 and 778,287,400.20

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Solution

The fourth proportional to 1,868,946,049.80, 2,803,419,074.70 and 778,287,400.20 is: 1,167,431,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,946,049.80 : 2,803,419,074.70 = 778,287,400.20 : x
  2. Step 2: Convert to fraction form
    1,868,946,049.80/2,803,419,074.70 = 778,287,400.20/x
  3. Step 3: Cross multiply
    1,868,946,049.80x = 2,803,419,074.70 × 778,287,400.20
  4. Step 4: Simplify right side
    1,868,946,049.80x = 2,181,865,743,319,352,576
  5. Step 5: Solve for x
    x = 2,181,865,743,319,352,576/1,868,946,049.80
  6. Step 6: Final answer
    x = 1,167,431,100.30

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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.