Finding the Fourth Proportional to 315,329,358.24, 435,091,402.80 and 176,078,694.24
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Solution
The fourth proportional to 315,329,358.24, 435,091,402.80 and 176,078,694.24 is: 242,953,356.79
Step by Step Solution
- Step 1: Write the proportion equation
315,329,358.24 : 435,091,402.80 = 176,078,694.24 : x - Step 2: Convert to fraction form
315,329,358.24/435,091,402.80 = 176,078,694.24/x - Step 3: Cross multiply
315,329,358.24x = 435,091,402.80 × 176,078,694.24 - Step 4: Simplify right side
315,329,358.24x = 76,610,326,080,073,888 - Step 5: Solve for x
x = 76,610,326,080,073,888/315,329,358.24 - Step 6: Final answer
x = 242,953,356.79
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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.