Finding the Fourth Proportional to 36,484,638.80, 54,690,862.20 and 17,281,643.60
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Solution
The fourth proportional to 36,484,638.80, 54,690,862.20 and 17,281,643.60 is: 25,905,367.84
Step by Step Solution
- Step 1: Write the proportion equation
36,484,638.80 : 54,690,862.20 = 17,281,643.60 : x - Step 2: Convert to fraction form
36,484,638.80/54,690,862.20 = 17,281,643.60/x - Step 3: Cross multiply
36,484,638.80x = 54,690,862.20 × 17,281,643.60 - Step 4: Simplify right side
36,484,638.80x = 945,147,988,717,112 - Step 5: Solve for x
x = 945,147,988,717,112/36,484,638.80 - Step 6: Final answer
x = 25,905,367.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.