Finding the Fourth Proportional to 221,299,269.20, 331,948,903.80 and 135,205,827.20
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Solution
The fourth proportional to 221,299,269.20, 331,948,903.80 and 135,205,827.20 is: 202,808,740.80
Step by Step Solution
- Step 1: Write the proportion equation
221,299,269.20 : 331,948,903.80 = 135,205,827.20 : x - Step 2: Convert to fraction form
221,299,269.20/331,948,903.80 = 135,205,827.20/x - Step 3: Cross multiply
221,299,269.20x = 331,948,903.80 × 135,205,827.20 - Step 4: Simplify right side
221,299,269.20x = 44,881,426,126,412,224 - Step 5: Solve for x
x = 44,881,426,126,412,224/221,299,269.20 - Step 6: Final answer
x = 202,808,740.80
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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.