Finding the Fourth Proportional to 18,986,885.49, 26,201,360.48 and 11,146,271.66
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Solution
The fourth proportional to 18,986,885.49, 26,201,360.48 and 11,146,271.66 is: 15,381,537.00
Step by Step Solution
- Step 1: Write the proportion equation
18,986,885.49 : 26,201,360.48 = 11,146,271.66 : x - Step 2: Convert to fraction form
18,986,885.49/26,201,360.48 = 11,146,271.66/x - Step 3: Cross multiply
18,986,885.49x = 26,201,360.48 × 11,146,271.66 - Step 4: Simplify right side
18,986,885.49x = 292,047,481,584,929.81 - Step 5: Solve for x
x = 292,047,481,584,929.81/18,986,885.49 - Step 6: Final answer
x = 15,381,537.00
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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.