Finding the Fourth Proportional to 14,538,840.86, 20,060,076.71 and 8,257,970.99
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Solution
The fourth proportional to 14,538,840.86, 20,060,076.71 and 8,257,970.99 is: 11,393,998.54
Step by Step Solution
- Step 1: Write the proportion equation
14,538,840.86 : 20,060,076.71 = 8,257,970.99 : x - Step 2: Convert to fraction form
14,538,840.86/20,060,076.71 = 8,257,970.99/x - Step 3: Cross multiply
14,538,840.86x = 20,060,076.71 × 8,257,970.99 - Step 4: Simplify right side
14,538,840.86x = 165,655,531,487,064.78 - Step 5: Solve for x
x = 165,655,531,487,064.78/14,538,840.86 - Step 6: Final answer
x = 11,393,998.54
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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.