Finding the Fourth Proportional to 85,314,934.88, 117,731,698.80 and 48,657,315.68
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Solution
The fourth proportional to 85,314,934.88, 117,731,698.80 and 48,657,315.68 is: 67,145,435.23
Step by Step Solution
- Step 1: Write the proportion equation
85,314,934.88 : 117,731,698.80 = 48,657,315.68 : x - Step 2: Convert to fraction form
85,314,934.88/117,731,698.80 = 48,657,315.68/x - Step 3: Cross multiply
85,314,934.88x = 117,731,698.80 × 48,657,315.68 - Step 4: Simplify right side
85,314,934.88x = 5,728,508,434,054,277 - Step 5: Solve for x
x = 5,728,508,434,054,277/85,314,934.88 - Step 6: Final answer
x = 67,145,435.23
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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.