Finding the Fourth Proportional to 14,438,517.80, 19,925,154.79 and 7,912,404.09
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Solution
The fourth proportional to 14,438,517.80, 19,925,154.79 and 7,912,404.09 is: 10,919,117.77
Step by Step Solution
- Step 1: Write the proportion equation
14,438,517.80 : 19,925,154.79 = 7,912,404.09 : x - Step 2: Convert to fraction form
14,438,517.80/19,925,154.79 = 7,912,404.09/x - Step 3: Cross multiply
14,438,517.80x = 19,925,154.79 × 7,912,404.09 - Step 4: Simplify right side
14,438,517.80x = 157,655,876,234,498.09 - Step 5: Solve for x
x = 157,655,876,234,498.09/14,438,517.80 - Step 6: Final answer
x = 10,919,117.77
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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.