Finding the Fourth Proportional to 2,165,331,549.06, 2,988,159,749.21 and 1,175,257,170.18
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Solution
The fourth proportional to 2,165,331,549.06, 2,988,159,749.21 and 1,175,257,170.18 is: 1,621,856,095.17
Step by Step Solution
- Step 1: Write the proportion equation
2,165,331,549.06 : 2,988,159,749.21 = 1,175,257,170.18 : x - Step 2: Convert to fraction form
2,165,331,549.06/2,988,159,749.21 = 1,175,257,170.18/x - Step 3: Cross multiply
2,165,331,549.06x = 2,988,159,749.21 × 1,175,257,170.18 - Step 4: Simplify right side
2,165,331,549.06x = 3,511,856,170,902,323,200 - Step 5: Solve for x
x = 3,511,856,170,902,323,200/2,165,331,549.06 - Step 6: Final answer
x = 1,621,856,095.17
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1.5x scale
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.