Finding the Fourth Proportional to 5,158,177.28, 7,118,349.15 and 2,835,323.40
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Solution
The fourth proportional to 5,158,177.28, 7,118,349.15 and 2,835,323.40 is: 3,912,781.75
Step by Step Solution
- Step 1: Write the proportion equation
5,158,177.28 : 7,118,349.15 = 2,835,323.40 : x - Step 2: Convert to fraction form
5,158,177.28/7,118,349.15 = 2,835,323.40/x - Step 3: Cross multiply
5,158,177.28x = 7,118,349.15 × 2,835,323.40 - Step 4: Simplify right side
5,158,177.28x = 20,182,821,914,365.11 - Step 5: Solve for x
x = 20,182,821,914,365.11/5,158,177.28 - Step 6: Final answer
x = 3,912,781.75
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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.