Finding the Fourth Proportional to 239,399,288,715.79, 330,370,804,987.83 and 135,134,696,467.05
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Solution
The fourth proportional to 239,399,288,715.79, 330,370,804,987.83 and 135,134,696,467.05 is: 186,485,760,643.20
Step by Step Solution
- Step 1: Write the proportion equation
239,399,288,715.79 : 330,370,804,987.83 = 135,134,696,467.05 : x - Step 2: Convert to fraction form
239,399,288,715.79/330,370,804,987.83 = 135,134,696,467.05/x - Step 3: Cross multiply
239,399,288,715.79x = 330,370,804,987.83 × 135,134,696,467.05 - Step 4: Simplify right side
239,399,288,715.79x = 44,644,558,453,605,375,410,176 - Step 5: Solve for x
x = 44,644,558,453,605,375,410,176/239,399,288,715.79 - Step 6: Final answer
x = 186,485,760,643.20
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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.