Finding the Fourth Proportional to 69,879,338.91, 104,815,194.57 and 21,357,176.31
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Solution
The fourth proportional to 69,879,338.91, 104,815,194.57 and 21,357,176.31 is: 32,034,598.86
Step by Step Solution
- Step 1: Write the proportion equation
69,879,338.91 : 104,815,194.57 = 21,357,176.31 : x - Step 2: Convert to fraction form
69,879,338.91/104,815,194.57 = 21,357,176.31/x - Step 3: Cross multiply
69,879,338.91x = 104,815,194.57 × 21,357,176.31 - Step 4: Simplify right side
69,879,338.91x = 2,238,556,590,398,444.25 - Step 5: Solve for x
x = 2,238,556,590,398,444.25/69,879,338.91 - Step 6: Final answer
x = 32,034,598.86
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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.