Finding the Fourth Proportional to 1,326,965,044.20, 1,990,447,566.30 and 844,430,029.80
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Solution
The fourth proportional to 1,326,965,044.20, 1,990,447,566.30 and 844,430,029.80 is: 1,266,645,044.70
Step by Step Solution
- Step 1: Write the proportion equation
1,326,965,044.20 : 1,990,447,566.30 = 844,430,029.80 : x - Step 2: Convert to fraction form
1,326,965,044.20/1,990,447,566.30 = 844,430,029.80/x - Step 3: Cross multiply
1,326,965,044.20x = 1,990,447,566.30 × 844,430,029.80 - Step 4: Simplify right side
1,326,965,044.20x = 1,680,793,697,726,046,464 - Step 5: Solve for x
x = 1,680,793,697,726,046,464/1,326,965,044.20 - Step 6: Final answer
x = 1,266,645,044.70
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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.