Finding the Fourth Proportional to 13,117,777.44, 18,102,557.70 and 7,316,934.90
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Solution
The fourth proportional to 13,117,777.44, 18,102,557.70 and 7,316,934.90 is: 10,097,384.01
Step by Step Solution
- Step 1: Write the proportion equation
13,117,777.44 : 18,102,557.70 = 7,316,934.90 : x - Step 2: Convert to fraction form
13,117,777.44/18,102,557.70 = 7,316,934.90/x - Step 3: Cross multiply
13,117,777.44x = 18,102,557.70 × 7,316,934.90 - Step 4: Simplify right side
13,117,777.44x = 132,455,236,214,393.73 - Step 5: Solve for x
x = 132,455,236,214,393.73/13,117,777.44 - Step 6: Final answer
x = 10,097,384.01
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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.