Finding the Fourth Proportional to 81,951,106.60, 122,926,659.90 and 41,136,437.80
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Solution
The fourth proportional to 81,951,106.60, 122,926,659.90 and 41,136,437.80 is: 61,704,656.70
Step by Step Solution
- Step 1: Write the proportion equation
81,951,106.60 : 122,926,659.90 = 41,136,437.80 : x - Step 2: Convert to fraction form
81,951,106.60/122,926,659.90 = 41,136,437.80/x - Step 3: Cross multiply
81,951,106.60x = 122,926,659.90 × 41,136,437.80 - Step 4: Simplify right side
81,951,106.60x = 5,056,764,898,938,104 - Step 5: Solve for x
x = 5,056,764,898,938,104/81,951,106.60 - Step 6: Final answer
x = 61,704,656.70
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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.