Finding the Fourth Proportional to 85,293,828.58, 117,695,368.20 and 48,121,941.80
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Solution
The fourth proportional to 85,293,828.58, 117,695,368.20 and 48,121,941.80 is: 66,402,572.76
Step by Step Solution
- Step 1: Write the proportion equation
85,293,828.58 : 117,695,368.20 = 48,121,941.80 : x - Step 2: Convert to fraction form
85,293,828.58/117,695,368.20 = 48,121,941.80/x - Step 3: Cross multiply
85,293,828.58x = 117,695,368.20 × 48,121,941.80 - Step 4: Simplify right side
85,293,828.58x = 5,663,729,658,649,971 - Step 5: Solve for x
x = 5,663,729,658,649,971/85,293,828.58 - Step 6: Final answer
x = 66,402,572.76
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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.