Finding the Fourth Proportional to 27,288,631.49, 40,938,832.65 and 7,857,726.63
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Solution
The fourth proportional to 27,288,631.49, 40,938,832.65 and 7,857,726.63 is: 11,788,284.65
Step by Step Solution
- Step 1: Write the proportion equation
27,288,631.49 : 40,938,832.65 = 7,857,726.63 : x - Step 2: Convert to fraction form
27,288,631.49/40,938,832.65 = 7,857,726.63/x - Step 3: Cross multiply
27,288,631.49x = 40,938,832.65 × 7,857,726.63 - Step 4: Simplify right side
27,288,631.49x = 321,686,155,645,669.56 - Step 5: Solve for x
x = 321,686,155,645,669.56/27,288,631.49 - Step 6: Final answer
x = 11,788,284.65
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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.