Finding the Fourth Proportional to 97,031,688.81, 145,105,452.96 and 72,456,872.82
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Solution
The fourth proportional to 97,031,688.81, 145,105,452.96 and 72,456,872.82 is: 108,355,192.82
Step by Step Solution
- Step 1: Write the proportion equation
97,031,688.81 : 145,105,452.96 = 72,456,872.82 : x - Step 2: Convert to fraction form
97,031,688.81/145,105,452.96 = 72,456,872.82/x - Step 3: Cross multiply
97,031,688.81x = 145,105,452.96 × 72,456,872.82 - Step 4: Simplify right side
97,031,688.81x = 10,513,887,350,611,212 - Step 5: Solve for x
x = 10,513,887,350,611,212/97,031,688.81 - Step 6: Final answer
x = 108,355,192.82
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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.