Finding the Fourth Proportional to 98,846,997.94, 136,409,966.78 and 56,466,170.12
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Solution
The fourth proportional to 98,846,997.94, 136,409,966.78 and 56,466,170.12 is: 77,923,948.64
Step by Step Solution
- Step 1: Write the proportion equation
98,846,997.94 : 136,409,966.78 = 56,466,170.12 : x - Step 2: Convert to fraction form
98,846,997.94/136,409,966.78 = 56,466,170.12/x - Step 3: Cross multiply
98,846,997.94x = 136,409,966.78 × 56,466,170.12 - Step 4: Simplify right side
98,846,997.94x = 7,702,548,390,263,028 - Step 5: Solve for x
x = 7,702,548,390,263,028/98,846,997.94 - Step 6: Final answer
x = 77,923,948.64
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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.