Finding the Fourth Proportional to 1,489,437,209.23, 2,055,423,251.30 and 863,268,843.88
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Solution
The fourth proportional to 1,489,437,209.23, 2,055,423,251.30 and 863,268,843.88 is: 1,191,310,948.08
Step by Step Solution
- Step 1: Write the proportion equation
1,489,437,209.23 : 2,055,423,251.30 = 863,268,843.88 : x - Step 2: Convert to fraction form
1,489,437,209.23/2,055,423,251.30 = 863,268,843.88/x - Step 3: Cross multiply
1,489,437,209.23x = 2,055,423,251.30 × 863,268,843.88 - Step 4: Simplify right side
1,489,437,209.23x = 1,774,382,853,833,821,696 - Step 5: Solve for x
x = 1,774,382,853,833,821,696/1,489,437,209.23 - Step 6: Final answer
x = 1,191,310,948.08
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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.