Finding the Fourth Proportional to 10,538,521.12, 14,535,135.18 and 9,070,927.48
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Solution
The fourth proportional to 10,538,521.12, 14,535,135.18 and 9,070,927.48 is: 12,510,973.37
Step by Step Solution
- Step 1: Write the proportion equation
10,538,521.12 : 14,535,135.18 = 9,070,927.48 : x - Step 2: Convert to fraction form
10,538,521.12/14,535,135.18 = 9,070,927.48/x - Step 3: Cross multiply
10,538,521.12x = 14,535,135.18 × 9,070,927.48 - Step 4: Simplify right side
10,538,521.12x = 131,847,157,129,776.75 - Step 5: Solve for x
x = 131,847,157,129,776.75/10,538,521.12 - Step 6: Final answer
x = 12,510,973.37
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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.