Finding the Fourth Proportional to 134,911,162.37, 186,178,686.74 and 79,157,531.24
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Solution
The fourth proportional to 134,911,162.37, 186,178,686.74 and 79,157,531.24 is: 109,238,145.70
Step by Step Solution
- Step 1: Write the proportion equation
134,911,162.37 : 186,178,686.74 = 79,157,531.24 : x - Step 2: Convert to fraction form
134,911,162.37/186,178,686.74 = 79,157,531.24/x - Step 3: Cross multiply
134,911,162.37x = 186,178,686.74 × 79,157,531.24 - Step 4: Simplify right side
134,911,162.37x = 14,737,445,211,843,724 - Step 5: Solve for x
x = 14,737,445,211,843,724/134,911,162.37 - Step 6: Final answer
x = 109,238,145.70
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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.