Finding the Fourth Proportional to 124,981,807,919.46, 172,474,763,852.97 and 67,889,163,750.18
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Solution
The fourth proportional to 124,981,807,919.46, 172,474,763,852.97 and 67,889,163,750.18 is: 93,686,974,775.83
Step by Step Solution
- Step 1: Write the proportion equation
124,981,807,919.46 : 172,474,763,852.97 = 67,889,163,750.18 : x - Step 2: Convert to fraction form
124,981,807,919.46/172,474,763,852.97 = 67,889,163,750.18/x - Step 3: Cross multiply
124,981,807,919.46x = 172,474,763,852.97 × 67,889,163,750.18 - Step 4: Simplify right side
124,981,807,919.46x = 11,709,167,485,987,906,912,256 - Step 5: Solve for x
x = 11,709,167,485,987,906,912,256/124,981,807,919.46 - Step 6: Final answer
x = 93,686,974,775.83
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1.5x scale
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.