Finding the Fourth Proportional to 85,985,920.58, 118,670,372.53 and 51,178,722.08
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Solution
The fourth proportional to 85,985,920.58, 118,670,372.53 and 51,178,722.08 is: 70,632,470.68
Step by Step Solution
- Step 1: Write the proportion equation
85,985,920.58 : 118,670,372.53 = 51,178,722.08 : x - Step 2: Convert to fraction form
85,985,920.58/118,670,372.53 = 51,178,722.08/x - Step 3: Cross multiply
85,985,920.58x = 118,670,372.53 × 51,178,722.08 - Step 4: Simplify right side
85,985,920.58x = 6,073,398,014,121,638 - Step 5: Solve for x
x = 6,073,398,014,121,638/85,985,920.58 - Step 6: Final answer
x = 70,632,470.68
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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.