Finding the Fourth Proportional to 74,679,967.60, 112,019,951.40 and 74,201,670.70
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Solution
The fourth proportional to 74,679,967.60, 112,019,951.40 and 74,201,670.70 is: 111,302,506.05
Step by Step Solution
- Step 1: Write the proportion equation
74,679,967.60 : 112,019,951.40 = 74,201,670.70 : x - Step 2: Convert to fraction form
74,679,967.60/112,019,951.40 = 74,201,670.70/x - Step 3: Cross multiply
74,679,967.60x = 112,019,951.40 × 74,201,670.70 - Step 4: Simplify right side
74,679,967.60x = 8,312,067,545,612,805 - Step 5: Solve for x
x = 8,312,067,545,612,805/74,679,967.60 - Step 6: Final answer
x = 111,302,506.05
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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.