Finding the Fourth Proportional to 13,119,678.54, 19,685,201.31 and 7,047,325.35
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Solution
The fourth proportional to 13,119,678.54, 19,685,201.31 and 7,047,325.35 is: 10,574,040.96
Step by Step Solution
- Step 1: Write the proportion equation
13,119,678.54 : 19,685,201.31 = 7,047,325.35 : x - Step 2: Convert to fraction form
13,119,678.54/19,685,201.31 = 7,047,325.35/x - Step 3: Cross multiply
13,119,678.54x = 19,685,201.31 × 7,047,325.35 - Step 4: Simplify right side
13,119,678.54x = 138,728,018,211,816.19 - Step 5: Solve for x
x = 138,728,018,211,816.19/13,119,678.54 - Step 6: Final answer
x = 10,574,040.96
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.