Finding the Fourth Proportional to 19,206,764.74, 28,799,515.86 and 7,855,184.98
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Solution
The fourth proportional to 19,206,764.74, 28,799,515.86 and 7,855,184.98 is: 11,778,429.50
Step by Step Solution
- Step 1: Write the proportion equation
19,206,764.74 : 28,799,515.86 = 7,855,184.98 : x - Step 2: Convert to fraction form
19,206,764.74/28,799,515.86 = 7,855,184.98/x - Step 3: Cross multiply
19,206,764.74x = 28,799,515.86 × 7,855,184.98 - Step 4: Simplify right side
19,206,764.74x = 226,225,524,414,743.78 - Step 5: Solve for x
x = 226,225,524,414,743.78/19,206,764.74 - Step 6: Final answer
x = 11,778,429.50
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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.