Finding the Fourth Proportional to 138,271,483.98, 190,812,390.57 and 75,546,232.02
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Solution
The fourth proportional to 138,271,483.98, 190,812,390.57 and 75,546,232.02 is: 104,252,566.87
Step by Step Solution
- Step 1: Write the proportion equation
138,271,483.98 : 190,812,390.57 = 75,546,232.02 : x - Step 2: Convert to fraction form
138,271,483.98/190,812,390.57 = 75,546,232.02/x - Step 3: Cross multiply
138,271,483.98x = 190,812,390.57 × 75,546,232.02 - Step 4: Simplify right side
138,271,483.98x = 14,415,157,130,292,078 - Step 5: Solve for x
x = 14,415,157,130,292,078/138,271,483.98 - Step 6: Final answer
x = 104,252,566.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.