Finding the Fourth Proportional to 6,321,867.86, 8,724,205.47 and 3,421,259.18
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Solution
The fourth proportional to 6,321,867.86, 8,724,205.47 and 3,421,259.18 is: 4,721,352.72
Step by Step Solution
- Step 1: Write the proportion equation
6,321,867.86 : 8,724,205.47 = 3,421,259.18 : x - Step 2: Convert to fraction form
6,321,867.86/8,724,205.47 = 3,421,259.18/x - Step 3: Cross multiply
6,321,867.86x = 8,724,205.47 × 3,421,259.18 - Step 4: Simplify right side
6,321,867.86x = 29,847,768,054,368.18 - Step 5: Solve for x
x = 29,847,768,054,368.18/6,321,867.86 - Step 6: Final answer
x = 4,721,352.72
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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.