Finding the Fourth Proportional to 121,694,032.13, 167,938,349.04 and 65,939,437.80
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Solution
The fourth proportional to 121,694,032.13, 167,938,349.04 and 65,939,437.80 is: 90,996,740.99
Step by Step Solution
- Step 1: Write the proportion equation
121,694,032.13 : 167,938,349.04 = 65,939,437.80 : x - Step 2: Convert to fraction form
121,694,032.13/167,938,349.04 = 65,939,437.80/x - Step 3: Cross multiply
121,694,032.13x = 167,938,349.04 × 65,939,437.80 - Step 4: Simplify right side
121,694,032.13x = 11,073,760,320,757,768 - Step 5: Solve for x
x = 11,073,760,320,757,768/121,694,032.13 - Step 6: Final answer
x = 90,996,740.99
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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.