Finding the Fourth Proportional to 13,301,705.58, 18,356,345.58 and 7,190,134.08
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Solution
The fourth proportional to 13,301,705.58, 18,356,345.58 and 7,190,134.08 is: 9,922,380.64
Step by Step Solution
- Step 1: Write the proportion equation
13,301,705.58 : 18,356,345.58 = 7,190,134.08 : x - Step 2: Convert to fraction form
13,301,705.58/18,356,345.58 = 7,190,134.08/x - Step 3: Cross multiply
13,301,705.58x = 18,356,345.58 × 7,190,134.08 - Step 4: Simplify right side
13,301,705.58x = 131,984,585,939,015.36 - Step 5: Solve for x
x = 131,984,585,939,015.36/13,301,705.58 - Step 6: Final answer
x = 9,922,380.64
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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.