Finding the Fourth Proportional to 74,771,149.80, 112,156,724.70 and 40,758,925.80
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Solution
The fourth proportional to 74,771,149.80, 112,156,724.70 and 40,758,925.80 is: 61,138,388.70
Step by Step Solution
- Step 1: Write the proportion equation
74,771,149.80 : 112,156,724.70 = 40,758,925.80 : x - Step 2: Convert to fraction form
74,771,149.80/112,156,724.70 = 40,758,925.80/x - Step 3: Cross multiply
74,771,149.80x = 112,156,724.70 × 40,758,925.80 - Step 4: Simplify right side
74,771,149.80x = 4,571,387,620,018,327 - Step 5: Solve for x
x = 4,571,387,620,018,327/74,771,149.80 - Step 6: Final answer
x = 61,138,388.70
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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.