Finding the Fourth Proportional to 13,332,387.89, 18,398,638.53 and 7,452,014.28
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Solution
The fourth proportional to 13,332,387.89, 18,398,638.53 and 7,452,014.28 is: 10,283,747.99
Step by Step Solution
- Step 1: Write the proportion equation
13,332,387.89 : 18,398,638.53 = 7,452,014.28 : x - Step 2: Convert to fraction form
13,332,387.89/18,398,638.53 = 7,452,014.28/x - Step 3: Cross multiply
13,332,387.89x = 18,398,638.53 × 7,452,014.28 - Step 4: Simplify right side
13,332,387.89x = 137,106,917,058,118.22 - Step 5: Solve for x
x = 137,106,917,058,118.22/13,332,387.89 - Step 6: Final answer
x = 10,283,747.99
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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.