Finding the Fourth Proportional to 13,235,809.56, 18,265,860.71 and 7,355,691.53
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Solution
The fourth proportional to 13,235,809.56, 18,265,860.71 and 7,355,691.53 is: 10,151,100.80
Step by Step Solution
- Step 1: Write the proportion equation
13,235,809.56 : 18,265,860.71 = 7,355,691.53 : x - Step 2: Convert to fraction form
13,235,809.56/18,265,860.71 = 7,355,691.53/x - Step 3: Cross multiply
13,235,809.56x = 18,265,860.71 × 7,355,691.53 - Step 4: Simplify right side
13,235,809.56x = 134,358,037,013,384.92 - Step 5: Solve for x
x = 134,358,037,013,384.92/13,235,809.56 - Step 6: Final answer
x = 10,151,100.80
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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.