Finding the Fourth Proportional to 13,451,535, 18,571,516.38 and 8,631,037.08
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Solution
The fourth proportional to 13,451,535, 18,571,516.38 and 8,631,037.08 is: 11,916,219.71
Step by Step Solution
- Step 1: Write the proportion equation
13,451,535 : 18,571,516.38 = 8,631,037.08 : x - Step 2: Convert to fraction form
13,451,535/18,571,516.38 = 8,631,037.08/x - Step 3: Cross multiply
13,451,535x = 18,571,516.38 × 8,631,037.08 - Step 4: Simplify right side
13,451,535x = 160,291,446,507,607.38 - Step 5: Solve for x
x = 160,291,446,507,607.38/13,451,535 - Step 6: Final answer
x = 11,916,219.71
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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.