Finding the Fourth Proportional to 79,119,908.70, 118,679,863.05 and 48,508,907.10
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Solution
The fourth proportional to 79,119,908.70, 118,679,863.05 and 48,508,907.10 is: 72,763,360.65
Step by Step Solution
- Step 1: Write the proportion equation
79,119,908.70 : 118,679,863.05 = 48,508,907.10 : x - Step 2: Convert to fraction form
79,119,908.70/118,679,863.05 = 48,508,907.10/x - Step 3: Cross multiply
79,119,908.70x = 118,679,863.05 × 48,508,907.10 - Step 4: Simplify right side
79,119,908.70x = 5,757,030,451,333,173 - Step 5: Solve for x
x = 5,757,030,451,333,173/79,119,908.70 - Step 6: Final answer
x = 72,763,360.65
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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.