Finding the Fourth Proportional to 13,357,914.06, 18,433,956.90 and 7,246,342.56
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Solution
The fourth proportional to 13,357,914.06, 18,433,956.90 and 7,246,342.56 is: 9,999,971.99
Step by Step Solution
- Step 1: Write the proportion equation
13,357,914.06 : 18,433,956.90 = 7,246,342.56 : x - Step 2: Convert to fraction form
13,357,914.06/18,433,956.90 = 7,246,342.56/x - Step 3: Cross multiply
13,357,914.06x = 18,433,956.90 × 7,246,342.56 - Step 4: Simplify right side
13,357,914.06x = 133,578,766,433,675.64 - Step 5: Solve for x
x = 133,578,766,433,675.64/13,357,914.06 - Step 6: Final answer
x = 9,999,971.99
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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.