Finding the Fourth Proportional to 221,781,181.80, 332,671,772.70 and 164,385,553.80
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Solution
The fourth proportional to 221,781,181.80, 332,671,772.70 and 164,385,553.80 is: 246,578,330.70
Step by Step Solution
- Step 1: Write the proportion equation
221,781,181.80 : 332,671,772.70 = 164,385,553.80 : x - Step 2: Convert to fraction form
221,781,181.80/332,671,772.70 = 164,385,553.80/x - Step 3: Cross multiply
221,781,181.80x = 332,671,772.70 × 164,385,553.80 - Step 4: Simplify right side
221,781,181.80x = 54,686,433,588,917,224 - Step 5: Solve for x
x = 54,686,433,588,917,224/221,781,181.80 - Step 6: Final answer
x = 246,578,330.70
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1.5x scale
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.