Finding the Fourth Proportional to 86,202,271.31, 129,320,423.48 and 31,615,329.75
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Solution
The fourth proportional to 86,202,271.31, 129,320,423.48 and 31,615,329.75 is: 47,429,235.56
Step by Step Solution
- Step 1: Write the proportion equation
86,202,271.31 : 129,320,423.48 = 31,615,329.75 : x - Step 2: Convert to fraction form
86,202,271.31/129,320,423.48 = 31,615,329.75/x - Step 3: Cross multiply
86,202,271.31x = 129,320,423.48 × 31,615,329.75 - Step 4: Simplify right side
86,202,271.31x = 4,088,507,831,947,177 - Step 5: Solve for x
x = 4,088,507,831,947,177/86,202,271.31 - Step 6: Final answer
x = 47,429,235.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.