Finding the Fourth Proportional to 439,767,531.40, 659,725,946.70 and 133,057,208.20
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Solution
The fourth proportional to 439,767,531.40, 659,725,946.70 and 133,057,208.20 is: 199,608,398.48
Step by Step Solution
- Step 1: Write the proportion equation
439,767,531.40 : 659,725,946.70 = 133,057,208.20 : x - Step 2: Convert to fraction form
439,767,531.40/659,725,946.70 = 133,057,208.20/x - Step 3: Cross multiply
439,767,531.40x = 659,725,946.70 × 133,057,208.20 - Step 4: Simplify right side
439,767,531.40x = 87,781,292,645,004,016 - Step 5: Solve for x
x = 87,781,292,645,004,016/439,767,531.40 - Step 6: Final answer
x = 199,608,398.48
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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.