Finding the Fourth Proportional to 81,679,551.40, 122,519,327.10 and 63,185,404.60
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Solution
The fourth proportional to 81,679,551.40, 122,519,327.10 and 63,185,404.60 is: 94,778,106.90
Step by Step Solution
- Step 1: Write the proportion equation
81,679,551.40 : 122,519,327.10 = 63,185,404.60 : x - Step 2: Convert to fraction form
81,679,551.40/122,519,327.10 = 63,185,404.60/x - Step 3: Cross multiply
81,679,551.40x = 122,519,327.10 × 63,185,404.60 - Step 4: Simplify right side
81,679,551.40x = 7,741,433,254,133,244 - Step 5: Solve for x
x = 7,741,433,254,133,244/81,679,551.40 - Step 6: Final answer
x = 94,778,106.90
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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.