Finding the Fourth Proportional to 136,354,432.55, 188,163,680.47 and 76,814,341.70
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Solution
The fourth proportional to 136,354,432.55, 188,163,680.47 and 76,814,341.70 is: 106,000,728.96
Step by Step Solution
- Step 1: Write the proportion equation
136,354,432.55 : 188,163,680.47 = 76,814,341.70 : x - Step 2: Convert to fraction form
136,354,432.55/188,163,680.47 = 76,814,341.70/x - Step 3: Cross multiply
136,354,432.55x = 188,163,680.47 × 76,814,341.70 - Step 4: Simplify right side
136,354,432.55x = 14,453,669,246,019,342 - Step 5: Solve for x
x = 14,453,669,246,019,342/136,354,432.55 - Step 6: Final answer
x = 106,000,728.96
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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.