Finding the Fourth Proportional to 10,990,612.88, 15,153,108.36 and 7,854,624.08
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Solution
The fourth proportional to 10,990,612.88, 15,153,108.36 and 7,854,624.08 is: 10,829,420.63
Step by Step Solution
- Step 1: Write the proportion equation
10,990,612.88 : 15,153,108.36 = 7,854,624.08 : x - Step 2: Convert to fraction form
10,990,612.88/15,153,108.36 = 7,854,624.08/x - Step 3: Cross multiply
10,990,612.88x = 15,153,108.36 × 7,854,624.08 - Step 4: Simplify right side
10,990,612.88x = 119,021,969,811,305.31 - Step 5: Solve for x
x = 119,021,969,811,305.31/10,990,612.88 - Step 6: Final answer
x = 10,829,420.63
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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.