Finding the Fourth Proportional to 161,877,801.70, 242,816,702.55 and 133,534,281.70
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Solution
The fourth proportional to 161,877,801.70, 242,816,702.55 and 133,534,281.70 is: 200,301,422.55
Step by Step Solution
- Step 1: Write the proportion equation
161,877,801.70 : 242,816,702.55 = 133,534,281.70 : x - Step 2: Convert to fraction form
161,877,801.70/242,816,702.55 = 133,534,281.70/x - Step 3: Cross multiply
161,877,801.70x = 242,816,702.55 × 133,534,281.70 - Step 4: Simplify right side
161,877,801.70x = 32,424,353,959,776,812 - Step 5: Solve for x
x = 32,424,353,959,776,812/161,877,801.70 - Step 6: Final answer
x = 200,301,422.55
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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.