Finding the Fourth Proportional to 35,428,649.34, 48,891,707.55 and 19,958,977.74
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Solution
The fourth proportional to 35,428,649.34, 48,891,707.55 and 19,958,977.74 is: 27,543,485.87
Step by Step Solution
- Step 1: Write the proportion equation
35,428,649.34 : 48,891,707.55 = 19,958,977.74 : x - Step 2: Convert to fraction form
35,428,649.34/48,891,707.55 = 19,958,977.74/x - Step 3: Cross multiply
35,428,649.34x = 48,891,707.55 × 19,958,977.74 - Step 4: Simplify right side
35,428,649.34x = 975,828,502,661,039.75 - Step 5: Solve for x
x = 975,828,502,661,039.75/35,428,649.34 - Step 6: Final answer
x = 27,543,485.87
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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.