Finding the Fourth Proportional to 9,306,165.05, 12,842,323.60 and 5,176,107.31
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Solution
The fourth proportional to 9,306,165.05, 12,842,323.60 and 5,176,107.31 is: 7,142,925.65
Step by Step Solution
- Step 1: Write the proportion equation
9,306,165.05 : 12,842,323.60 = 5,176,107.31 : x - Step 2: Convert to fraction form
9,306,165.05/12,842,323.60 = 5,176,107.31/x - Step 3: Cross multiply
9,306,165.05x = 12,842,323.60 × 5,176,107.31 - Step 4: Simplify right side
9,306,165.05x = 66,473,245,063,345.51 - Step 5: Solve for x
x = 66,473,245,063,345.51/9,306,165.05 - Step 6: Final answer
x = 7,142,925.65
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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.