Finding the Fourth Proportional to 143,803,808.70, 215,705,713.05 and 119,888,963.70
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Solution
The fourth proportional to 143,803,808.70, 215,705,713.05 and 119,888,963.70 is: 179,833,445.55
Step by Step Solution
- Step 1: Write the proportion equation
143,803,808.70 : 215,705,713.05 = 119,888,963.70 : x - Step 2: Convert to fraction form
143,803,808.70/215,705,713.05 = 119,888,963.70/x - Step 3: Cross multiply
143,803,808.70x = 215,705,713.05 × 119,888,963.70 - Step 4: Simplify right side
143,803,808.70x = 25,860,734,401,734,068 - Step 5: Solve for x
x = 25,860,734,401,734,068/143,803,808.70 - Step 6: Final answer
x = 179,833,445.55
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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.