Finding the Fourth Proportional to 83,487,618.85, 115,199,921.08 and 47,723,549.05
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Solution
The fourth proportional to 83,487,618.85, 115,199,921.08 and 47,723,549.05 is: 65,851,070.61
Step by Step Solution
- Step 1: Write the proportion equation
83,487,618.85 : 115,199,921.08 = 47,723,549.05 : x - Step 2: Convert to fraction form
83,487,618.85/115,199,921.08 = 47,723,549.05/x - Step 3: Cross multiply
83,487,618.85x = 115,199,921.08 × 47,723,549.05 - Step 4: Simplify right side
83,487,618.85x = 5,497,749,083,978,891 - Step 5: Solve for x
x = 5,497,749,083,978,891/83,487,618.85 - Step 6: Final answer
x = 65,851,070.61
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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.