Finding the Fourth Proportional to 19,569,776.80, 29,344,167.60 and 8,197,376.80
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Solution
The fourth proportional to 19,569,776.80, 29,344,167.60 and 8,197,376.80 is: 12,291,667.97
Step by Step Solution
- Step 1: Write the proportion equation
19,569,776.80 : 29,344,167.60 = 8,197,376.80 : x - Step 2: Convert to fraction form
19,569,776.80/29,344,167.60 = 8,197,376.80/x - Step 3: Cross multiply
19,569,776.80x = 29,344,167.60 × 8,197,376.80 - Step 4: Simplify right side
19,569,776.80x = 240,545,198,699,551.69 - Step 5: Solve for x
x = 240,545,198,699,551.69/19,569,776.80 - Step 6: Final answer
x = 12,291,667.97
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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.