Finding the Fourth Proportional to 2,165,331,548.56, 2,988,159,748.52 and 1,175,257,169.68
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Solution
The fourth proportional to 2,165,331,548.56, 2,988,159,748.52 and 1,175,257,169.68 is: 1,621,856,094.47
Step by Step Solution
- Step 1: Write the proportion equation
2,165,331,548.56 : 2,988,159,748.52 = 1,175,257,169.68 : x - Step 2: Convert to fraction form
2,165,331,548.56/2,988,159,748.52 = 1,175,257,169.68/x - Step 3: Cross multiply
2,165,331,548.56x = 2,988,159,748.52 × 1,175,257,169.68 - Step 4: Simplify right side
2,165,331,548.56x = 3,511,856,168,583,968,768 - Step 5: Solve for x
x = 3,511,856,168,583,968,768/2,165,331,548.56 - Step 6: Final answer
x = 1,621,856,094.47
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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.