Finding the Fourth Proportional to 88,741,076.06, 133,717,337.30 and 72,921,406.10
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Solution
The fourth proportional to 88,741,076.06, 133,717,337.30 and 72,921,406.10 is: 109,879,851.45
Step by Step Solution
- Step 1: Write the proportion equation
88,741,076.06 : 133,717,337.30 = 72,921,406.10 : x - Step 2: Convert to fraction form
88,741,076.06/133,717,337.30 = 72,921,406.10/x - Step 3: Cross multiply
88,741,076.06x = 133,717,337.30 × 72,921,406.10 - Step 4: Simplify right side
88,741,076.06x = 9,750,856,254,830,784 - Step 5: Solve for x
x = 9,750,856,254,830,784/88,741,076.06 - Step 6: Final answer
x = 109,879,851.45
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.