Finding the Fourth Proportional to 13,270,381.18, 19,867,386.74 and 11,885,660.26
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Solution
The fourth proportional to 13,270,381.18, 19,867,386.74 and 11,885,660.26 is: 17,794,289.84
Step by Step Solution
- Step 1: Write the proportion equation
13,270,381.18 : 19,867,386.74 = 11,885,660.26 : x - Step 2: Convert to fraction form
13,270,381.18/19,867,386.74 = 11,885,660.26/x - Step 3: Cross multiply
13,270,381.18x = 19,867,386.74 × 11,885,660.26 - Step 4: Simplify right side
13,270,381.18x = 236,137,009,045,668.94 - Step 5: Solve for x
x = 236,137,009,045,668.94/13,270,381.18 - Step 6: Final answer
x = 17,794,289.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.