Finding the Fourth Proportional to 15,483,690.70, 21,368,854.81 and 8,515,596.02
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Solution
The fourth proportional to 15,483,690.70, 21,368,854.81 and 8,515,596.02 is: 11,752,271.38
Step by Step Solution
- Step 1: Write the proportion equation
15,483,690.70 : 21,368,854.81 = 8,515,596.02 : x - Step 2: Convert to fraction form
15,483,690.70/21,368,854.81 = 8,515,596.02/x - Step 3: Cross multiply
15,483,690.70x = 21,368,854.81 × 8,515,596.02 - Step 4: Simplify right side
15,483,690.70x = 181,968,534,950,704.88 - Step 5: Solve for x
x = 181,968,534,950,704.88/15,483,690.70 - Step 6: Final answer
x = 11,752,271.38
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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.