Finding the Fourth Proportional to 13,574,054.70, 18,732,317.28 and 7,379,113.32
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Solution
The fourth proportional to 13,574,054.70, 18,732,317.28 and 7,379,113.32 is: 10,183,242.59
Step by Step Solution
- Step 1: Write the proportion equation
13,574,054.70 : 18,732,317.28 = 7,379,113.32 : x - Step 2: Convert to fraction form
13,574,054.70/18,732,317.28 = 7,379,113.32/x - Step 3: Cross multiply
13,574,054.70x = 18,732,317.28 × 7,379,113.32 - Step 4: Simplify right side
13,574,054.70x = 138,227,891,955,314.19 - Step 5: Solve for x
x = 138,227,891,955,314.19/13,574,054.70 - Step 6: Final answer
x = 10,183,242.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.