Finding the Fourth Proportional to 101,143,266.80, 139,577,708.36 and 54,733,520.70
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Solution
The fourth proportional to 101,143,266.80, 139,577,708.36 and 54,733,520.70 is: 75,532,258.66
Step by Step Solution
- Step 1: Write the proportion equation
101,143,266.80 : 139,577,708.36 = 54,733,520.70 : x - Step 2: Convert to fraction form
101,143,266.80/139,577,708.36 = 54,733,520.70/x - Step 3: Cross multiply
101,143,266.80x = 139,577,708.36 × 54,733,520.70 - Step 4: Simplify right side
101,143,266.80x = 7,639,579,389,780,624 - Step 5: Solve for x
x = 7,639,579,389,780,624/101,143,266.80 - Step 6: Final answer
x = 75,532,258.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.