Finding the Fourth Proportional to 15,049,804.74, 20,768,377.29 and 8,855,252.68
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Solution
The fourth proportional to 15,049,804.74, 20,768,377.29 and 8,855,252.68 is: 12,220,040.85
Step by Step Solution
- Step 1: Write the proportion equation
15,049,804.74 : 20,768,377.29 = 8,855,252.68 : x - Step 2: Convert to fraction form
15,049,804.74/20,768,377.29 = 8,855,252.68/x - Step 3: Cross multiply
15,049,804.74x = 20,768,377.29 × 8,855,252.68 - Step 4: Simplify right side
15,049,804.74x = 183,909,228,687,429.78 - Step 5: Solve for x
x = 183,909,228,687,429.78/15,049,804.74 - Step 6: Final answer
x = 12,220,040.85
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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.