Finding the Fourth Proportional to 15,773,876.18, 21,768,014.74 and 8,530,532.18
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Solution
The fourth proportional to 15,773,876.18, 21,768,014.74 and 8,530,532.18 is: 11,772,169.89
Step by Step Solution
- Step 1: Write the proportion equation
15,773,876.18 : 21,768,014.74 = 8,530,532.18 : x - Step 2: Convert to fraction form
15,773,876.18/21,768,014.74 = 8,530,532.18/x - Step 3: Cross multiply
15,773,876.18x = 21,768,014.74 × 8,530,532.18 - Step 4: Simplify right side
15,773,876.18x = 185,692,750,234,284.31 - Step 5: Solve for x
x = 185,692,750,234,284.31/15,773,876.18 - Step 6: Final answer
x = 11,772,169.89
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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.