Finding the Fourth Proportional to 816,431,848.96, 1,225,221,748.96 and 738,373,794.88
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Solution
The fourth proportional to 816,431,848.96, 1,225,221,748.96 and 738,373,794.88 is: 1,108,079,790.74
Step by Step Solution
- Step 1: Write the proportion equation
816,431,848.96 : 1,225,221,748.96 = 738,373,794.88 : x - Step 2: Convert to fraction form
816,431,848.96/1,225,221,748.96 = 738,373,794.88/x - Step 3: Cross multiply
816,431,848.96x = 1,225,221,748.96 × 738,373,794.88 - Step 4: Simplify right side
816,431,848.96x = 904,671,632,349,105,920 - Step 5: Solve for x
x = 904,671,632,349,105,920/816,431,848.96 - Step 6: Final answer
x = 1,108,079,790.74
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1.5x scale
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.