Finding the Fourth Proportional to 64,708,382.47, 89,299,771.52 and 38,269,400.28
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Solution
The fourth proportional to 64,708,382.47, 89,299,771.52 and 38,269,400.28 is: 52,813,075.69
Step by Step Solution
- Step 1: Write the proportion equation
64,708,382.47 : 89,299,771.52 = 38,269,400.28 : x - Step 2: Convert to fraction form
64,708,382.47/89,299,771.52 = 38,269,400.28/x - Step 3: Cross multiply
64,708,382.47x = 89,299,771.52 × 38,269,400.28 - Step 4: Simplify right side
64,708,382.47x = 3,417,448,701,187,514 - Step 5: Solve for x
x = 3,417,448,701,187,514/64,708,382.47 - Step 6: Final answer
x = 52,813,075.69
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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.