Finding the Fourth Proportional to 5,178,373.13, 7,149,216.89 and 4,603,823.63
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Solution
The fourth proportional to 5,178,373.13, 7,149,216.89 and 4,603,823.63 is: 6,355,998.84
Step by Step Solution
- Step 1: Write the proportion equation
5,178,373.13 : 7,149,216.89 = 4,603,823.63 : x - Step 2: Convert to fraction form
5,178,373.13/7,149,216.89 = 4,603,823.63/x - Step 3: Cross multiply
5,178,373.13x = 7,149,216.89 × 4,603,823.63 - Step 4: Simplify right side
5,178,373.13x = 32,913,733,630,853.64 - Step 5: Solve for x
x = 32,913,733,630,853.64/5,178,373.13 - Step 6: Final answer
x = 6,355,998.84
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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.