Finding the Fourth Proportional to 7,197,345.18, 9,932,062.05 and 3,934,132.20
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Solution
The fourth proportional to 7,197,345.18, 9,932,062.05 and 3,934,132.20 is: 5,428,952.50
Step by Step Solution
- Step 1: Write the proportion equation
7,197,345.18 : 9,932,062.05 = 3,934,132.20 : x - Step 2: Convert to fraction form
7,197,345.18/9,932,062.05 = 3,934,132.20/x - Step 3: Cross multiply
7,197,345.18x = 9,932,062.05 × 3,934,132.20 - Step 4: Simplify right side
7,197,345.18x = 39,074,045,123,303.02 - Step 5: Solve for x
x = 39,074,045,123,303.02/7,197,345.18 - Step 6: Final answer
x = 5,428,952.50
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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.