Finding the Fourth Proportional to 13,016,235.79, 19,507,349.67 and 7,258,739.59
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Solution
The fourth proportional to 13,016,235.79, 19,507,349.67 and 7,258,739.59 is: 10,878,626.79
Step by Step Solution
- Step 1: Write the proportion equation
13,016,235.79 : 19,507,349.67 = 7,258,739.59 : x - Step 2: Convert to fraction form
13,016,235.79/19,507,349.67 = 7,258,739.59/x - Step 3: Cross multiply
13,016,235.79x = 19,507,349.67 × 7,258,739.59 - Step 4: Simplify right side
13,016,235.79x = 141,598,771,345,602.44 - Step 5: Solve for x
x = 141,598,771,345,602.44/13,016,235.79 - Step 6: Final answer
x = 10,878,626.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.