Finding the Fourth Proportional to 19,985,212.86, 29,981,966.49 and 8,018,881.98
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Solution
The fourth proportional to 19,985,212.86, 29,981,966.49 and 8,018,881.98 is: 12,029,987.00
Step by Step Solution
- Step 1: Write the proportion equation
19,985,212.86 : 29,981,966.49 = 8,018,881.98 : x - Step 2: Convert to fraction form
19,985,212.86/29,981,966.49 = 8,018,881.98/x - Step 3: Cross multiply
19,985,212.86x = 29,981,966.49 × 8,018,881.98 - Step 4: Simplify right side
19,985,212.86x = 240,421,850,811,624.84 - Step 5: Solve for x
x = 240,421,850,811,624.84/19,985,212.86 - Step 6: Final answer
x = 12,029,987.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.