Finding the Fourth Proportional to 13,376,783.12, 18,459,342.79 and 7,575,606.68
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Solution
The fourth proportional to 13,376,783.12, 18,459,342.79 and 7,575,606.68 is: 10,453,987.27
Step by Step Solution
- Step 1: Write the proportion equation
13,376,783.12 : 18,459,342.79 = 7,575,606.68 : x - Step 2: Convert to fraction form
13,376,783.12/18,459,342.79 = 7,575,606.68/x - Step 3: Cross multiply
13,376,783.12x = 18,459,342.79 × 7,575,606.68 - Step 4: Simplify right side
13,376,783.12x = 139,840,720,437,098.11 - Step 5: Solve for x
x = 139,840,720,437,098.11/13,376,783.12 - Step 6: Final answer
x = 10,453,987.27
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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.