Finding the Fourth Proportional to 7,109,575.74, 9,810,971.91 and 4,054,774.14
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Solution
The fourth proportional to 7,109,575.74, 9,810,971.91 and 4,054,774.14 is: 5,595,449.95
Step by Step Solution
- Step 1: Write the proportion equation
7,109,575.74 : 9,810,971.91 = 4,054,774.14 : x - Step 2: Convert to fraction form
7,109,575.74/9,810,971.91 = 4,054,774.14/x - Step 3: Cross multiply
7,109,575.74x = 9,810,971.91 × 4,054,774.14 - Step 4: Simplify right side
7,109,575.74x = 39,781,275,188,934.41 - Step 5: Solve for x
x = 39,781,275,188,934.41/7,109,575.74 - Step 6: Final answer
x = 5,595,449.95
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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.