Finding the Fourth Proportional to 7,853,980.40, 11,771,639.40 and 3,305,020.40
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Solution
The fourth proportional to 7,853,980.40, 11,771,639.40 and 3,305,020.40 is: 4,953,603.95
Step by Step Solution
- Step 1: Write the proportion equation
7,853,980.40 : 11,771,639.40 = 3,305,020.40 : x - Step 2: Convert to fraction form
7,853,980.40/11,771,639.40 = 3,305,020.40/x - Step 3: Cross multiply
7,853,980.40x = 11,771,639.40 × 3,305,020.40 - Step 4: Simplify right side
7,853,980.40x = 38,905,508,358,443.76 - Step 5: Solve for x
x = 38,905,508,358,443.76/7,853,980.40 - Step 6: Final answer
x = 4,953,603.95
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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.