Finding the Fourth Proportional to 347,217,878.16, 479,558,346.87 and 228,670,403.19
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Solution
The fourth proportional to 347,217,878.16, 479,558,346.87 and 228,670,403.19 is: 315,827,056.81
Step by Step Solution
- Step 1: Write the proportion equation
347,217,878.16 : 479,558,346.87 = 228,670,403.19 : x - Step 2: Convert to fraction form
347,217,878.16/479,558,346.87 = 228,670,403.19/x - Step 3: Cross multiply
347,217,878.16x = 479,558,346.87 × 228,670,403.19 - Step 4: Simplify right side
347,217,878.16x = 109,660,800,531,892,768 - Step 5: Solve for x
x = 109,660,800,531,892,768/347,217,878.16 - Step 6: Final answer
x = 315,827,056.81
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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.