Finding the Fourth Proportional to 143,803,802.70, 215,705,704.05 and 119,888,957.70
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Solution
The fourth proportional to 143,803,802.70, 215,705,704.05 and 119,888,957.70 is: 179,833,436.55
Step by Step Solution
- Step 1: Write the proportion equation
143,803,802.70 : 215,705,704.05 = 119,888,957.70 : x - Step 2: Convert to fraction form
143,803,802.70/215,705,704.05 = 119,888,957.70/x - Step 3: Cross multiply
143,803,802.70x = 215,705,704.05 × 119,888,957.70 - Step 4: Simplify right side
143,803,802.70x = 25,860,732,028,499,172 - Step 5: Solve for x
x = 25,860,732,028,499,172/143,803,802.70 - Step 6: Final answer
x = 179,833,436.55
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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.