Finding the Fourth Proportional to 8,782,448.34, 12,119,518.32 and 4,862,379.12
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Solution
The fourth proportional to 8,782,448.34, 12,119,518.32 and 4,862,379.12 is: 6,709,939.02
Step by Step Solution
- Step 1: Write the proportion equation
8,782,448.34 : 12,119,518.32 = 4,862,379.12 : x - Step 2: Convert to fraction form
8,782,448.34/12,119,518.32 = 4,862,379.12/x - Step 3: Cross multiply
8,782,448.34x = 12,119,518.32 × 4,862,379.12 - Step 4: Simplify right side
8,782,448.34x = 58,929,692,823,625.48 - Step 5: Solve for x
x = 58,929,692,823,625.48/8,782,448.34 - Step 6: Final answer
x = 6,709,939.02
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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.