Finding the Fourth Proportional to 158,708,102.58, 219,019,889.26 and 87,184,000.09
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Solution
The fourth proportional to 158,708,102.58, 219,019,889.26 and 87,184,000.09 is: 120,315,407.57
Step by Step Solution
- Step 1: Write the proportion equation
158,708,102.58 : 219,019,889.26 = 87,184,000.09 : x - Step 2: Convert to fraction form
158,708,102.58/219,019,889.26 = 87,184,000.09/x - Step 3: Cross multiply
158,708,102.58x = 219,019,889.26 × 87,184,000.09 - Step 4: Simplify right side
158,708,102.58x = 19,095,030,045,769,260 - Step 5: Solve for x
x = 19,095,030,045,769,260/158,708,102.58 - Step 6: Final answer
x = 120,315,407.57
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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.