Finding the Fourth Proportional to 7,972,551.08, 11,002,117.30 and 4,350,879.08
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Solution
The fourth proportional to 7,972,551.08, 11,002,117.30 and 4,350,879.08 is: 6,004,211.39
Step by Step Solution
- Step 1: Write the proportion equation
7,972,551.08 : 11,002,117.30 = 4,350,879.08 : x - Step 2: Convert to fraction form
7,972,551.08/11,002,117.30 = 4,350,879.08/x - Step 3: Cross multiply
7,972,551.08x = 11,002,117.30 × 4,350,879.08 - Step 4: Simplify right side
7,972,551.08x = 47,868,881,996,276.09 - Step 5: Solve for x
x = 47,868,881,996,276.09/7,972,551.08 - Step 6: Final answer
x = 6,004,211.39
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Double scale
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1.5x scale
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.