Finding the Fourth Proportional to 163,729,121.10, 245,593,681.65 and 66,634,850.40
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Solution
The fourth proportional to 163,729,121.10, 245,593,681.65 and 66,634,850.40 is: 99,952,275.60
Step by Step Solution
- Step 1: Write the proportion equation
163,729,121.10 : 245,593,681.65 = 66,634,850.40 : x - Step 2: Convert to fraction form
163,729,121.10/245,593,681.65 = 66,634,850.40/x - Step 3: Cross multiply
163,729,121.10x = 245,593,681.65 × 66,634,850.40 - Step 4: Simplify right side
163,729,121.10x = 16,365,098,235,932,976 - Step 5: Solve for x
x = 16,365,098,235,932,976/163,729,121.10 - Step 6: Final answer
x = 99,952,275.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.