Finding the Fourth Proportional to 5,194,308.40, 7,791,462.60 and 3,281,120.80
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Solution
The fourth proportional to 5,194,308.40, 7,791,462.60 and 3,281,120.80 is: 4,921,681.20
Step by Step Solution
- Step 1: Write the proportion equation
5,194,308.40 : 7,791,462.60 = 3,281,120.80 : x - Step 2: Convert to fraction form
5,194,308.40/7,791,462.60 = 3,281,120.80/x - Step 3: Cross multiply
5,194,308.40x = 7,791,462.60 × 3,281,120.80 - Step 4: Simplify right side
5,194,308.40x = 25,564,729,999,282.08 - Step 5: Solve for x
x = 25,564,729,999,282.08/5,194,308.40 - Step 6: Final answer
x = 4,921,681.20
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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.