Finding the Fourth Proportional to 74,771,145.30, 112,156,717.95 and 40,758,921.30
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Solution
The fourth proportional to 74,771,145.30, 112,156,717.95 and 40,758,921.30 is: 61,138,381.95
Step by Step Solution
- Step 1: Write the proportion equation
74,771,145.30 : 112,156,717.95 = 40,758,921.30 : x - Step 2: Convert to fraction form
74,771,145.30/112,156,717.95 = 40,758,921.30/x - Step 3: Cross multiply
74,771,145.30x = 112,156,717.95 × 40,758,921.30 - Step 4: Simplify right side
74,771,145.30x = 4,571,386,840,190,347 - Step 5: Solve for x
x = 4,571,386,840,190,347/74,771,145.30 - Step 6: Final answer
x = 61,138,381.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.