Finding the Fourth Proportional to 18,386,463.60, 27,579,621.36 and 5,606,931.60
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Solution
The fourth proportional to 18,386,463.60, 27,579,621.36 and 5,606,931.60 is: 8,410,374.82
Step by Step Solution
- Step 1: Write the proportion equation
18,386,463.60 : 27,579,621.36 = 5,606,931.60 : x - Step 2: Convert to fraction form
18,386,463.60/27,579,621.36 = 5,606,931.60/x - Step 3: Cross multiply
18,386,463.60x = 27,579,621.36 × 5,606,931.60 - Step 4: Simplify right side
18,386,463.60x = 154,637,050,519,418.97 - Step 5: Solve for x
x = 154,637,050,519,418.97/18,386,463.60 - Step 6: Final answer
x = 8,410,374.82
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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.