Finding the Fourth Proportional to 7,720,658.40, 11,577,029.48 and 4,079,346.45
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Solution
The fourth proportional to 7,720,658.40, 11,577,029.48 and 4,079,346.45 is: 6,116,928.33
Step by Step Solution
- Step 1: Write the proportion equation
7,720,658.40 : 11,577,029.48 = 4,079,346.45 : x - Step 2: Convert to fraction form
7,720,658.40/11,577,029.48 = 4,079,346.45/x - Step 3: Cross multiply
7,720,658.40x = 11,577,029.48 × 4,079,346.45 - Step 4: Simplify right side
7,720,658.40x = 47,226,714,090,386.62 - Step 5: Solve for x
x = 47,226,714,090,386.62/7,720,658.40 - Step 6: Final answer
x = 6,116,928.33
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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.