Finding the Fourth Proportional to 57,887,765.42, 79,885,273.44 and 31,783,973.99
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Solution
The fourth proportional to 57,887,765.42, 79,885,273.44 and 31,783,973.99 is: 43,861,970.40
Step by Step Solution
- Step 1: Write the proportion equation
57,887,765.42 : 79,885,273.44 = 31,783,973.99 : x - Step 2: Convert to fraction form
57,887,765.42/79,885,273.44 = 31,783,973.99/x - Step 3: Cross multiply
57,887,765.42x = 79,885,273.44 × 31,783,973.99 - Step 4: Simplify right side
57,887,765.42x = 2,539,071,453,370,116 - Step 5: Solve for x
x = 2,539,071,453,370,116/57,887,765.42 - Step 6: Final answer
x = 43,861,970.40
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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.