Finding the Fourth Proportional to 13,886,154.18, 20,744,781.30 and 8,988,562.08
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Solution
The fourth proportional to 13,886,154.18, 20,744,781.30 and 8,988,562.08 is: 13,428,178.32
Step by Step Solution
- Step 1: Write the proportion equation
13,886,154.18 : 20,744,781.30 = 8,988,562.08 : x - Step 2: Convert to fraction form
13,886,154.18/20,744,781.30 = 8,988,562.08/x - Step 3: Cross multiply
13,886,154.18x = 20,744,781.30 × 8,988,562.08 - Step 4: Simplify right side
13,886,154.18x = 186,465,754,551,073.12 - Step 5: Solve for x
x = 186,465,754,551,073.12/13,886,154.18 - Step 6: Final answer
x = 13,428,178.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.