Finding the Fourth Proportional to 1,573,375,495.88, 2,171,378,367.06 and 868,663,209.80
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Solution
The fourth proportional to 1,573,375,495.88, 2,171,378,367.06 and 868,663,209.80 is: 1,198,821,582.62
Step by Step Solution
- Step 1: Write the proportion equation
1,573,375,495.88 : 2,171,378,367.06 = 868,663,209.80 : x - Step 2: Convert to fraction form
1,573,375,495.88/2,171,378,367.06 = 868,663,209.80/x - Step 3: Cross multiply
1,573,375,495.88x = 2,171,378,367.06 × 868,663,209.80 - Step 4: Simplify right side
1,573,375,495.88x = 1,886,196,502,020,622,080 - Step 5: Solve for x
x = 1,886,196,502,020,622,080/1,573,375,495.88 - Step 6: Final answer
x = 1,198,821,582.62
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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.