Finding the Fourth Proportional to 266,612,618.39, 399,815,535.94 and 91,702,394.51
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Solution
The fourth proportional to 266,612,618.39, 399,815,535.94 and 91,702,394.51 is: 137,518,029.82
Step by Step Solution
- Step 1: Write the proportion equation
266,612,618.39 : 399,815,535.94 = 91,702,394.51 : x - Step 2: Convert to fraction form
266,612,618.39/399,815,535.94 = 91,702,394.51/x - Step 3: Cross multiply
266,612,618.39x = 399,815,535.94 × 91,702,394.51 - Step 4: Simplify right side
266,612,618.39x = 36,664,042,005,768,632 - Step 5: Solve for x
x = 36,664,042,005,768,632/266,612,618.39 - Step 6: Final answer
x = 137,518,029.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.