Finding the Fourth Proportional to 13,636,611.96, 18,818,924.18 and 7,442,056.95
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Solution
The fourth proportional to 13,636,611.96, 18,818,924.18 and 7,442,056.95 is: 10,270,256.71
Step by Step Solution
- Step 1: Write the proportion equation
13,636,611.96 : 18,818,924.18 = 7,442,056.95 : x - Step 2: Convert to fraction form
13,636,611.96/18,818,924.18 = 7,442,056.95/x - Step 3: Cross multiply
13,636,611.96x = 18,818,924.18 × 7,442,056.95 - Step 4: Simplify right side
13,636,611.96x = 140,051,505,485,292.05 - Step 5: Solve for x
x = 140,051,505,485,292.05/13,636,611.96 - Step 6: Final answer
x = 10,270,256.71
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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.