Finding the Fourth Proportional to 163,510,497,689.86, 225,635,072,466.01 and 91,246,890,979.54
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Solution
The fourth proportional to 163,510,497,689.86, 225,635,072,466.01 and 91,246,890,979.54 is: 125,915,455,884.17
Step by Step Solution
- Step 1: Write the proportion equation
163,510,497,689.86 : 225,635,072,466.01 = 91,246,890,979.54 : x - Step 2: Convert to fraction form
163,510,497,689.86/225,635,072,466.01 = 91,246,890,979.54/x - Step 3: Cross multiply
163,510,497,689.86x = 225,635,072,466.01 × 91,246,890,979.54 - Step 4: Simplify right side
163,510,497,689.86x = 20,588,498,858,465,495,613,440 - Step 5: Solve for x
x = 20,588,498,858,465,495,613,440/163,510,497,689.86 - Step 6: Final answer
x = 125,915,455,884.17
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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.