Finding the Fourth Proportional to 97,997,950.20, 146,996,925.30 and 68,772,631.80
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Solution
The fourth proportional to 97,997,950.20, 146,996,925.30 and 68,772,631.80 is: 103,158,947.70
Step by Step Solution
- Step 1: Write the proportion equation
97,997,950.20 : 146,996,925.30 = 68,772,631.80 : x - Step 2: Convert to fraction form
97,997,950.20/146,996,925.30 = 68,772,631.80/x - Step 3: Cross multiply
97,997,950.20x = 146,996,925.30 × 68,772,631.80 - Step 4: Simplify right side
97,997,950.20x = 10,109,365,419,389,004 - Step 5: Solve for x
x = 10,109,365,419,389,004/97,997,950.20 - Step 6: Final answer
x = 103,158,947.70
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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.