Finding the Fourth Proportional to 79,488,575.70, 119,232,863.55 and 69,410,879.70
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Solution
The fourth proportional to 79,488,575.70, 119,232,863.55 and 69,410,879.70 is: 104,116,319.55
Step by Step Solution
- Step 1: Write the proportion equation
79,488,575.70 : 119,232,863.55 = 69,410,879.70 : x - Step 2: Convert to fraction form
79,488,575.70/119,232,863.55 = 69,410,879.70/x - Step 3: Cross multiply
79,488,575.70x = 119,232,863.55 × 69,410,879.70 - Step 4: Simplify right side
79,488,575.70x = 8,276,057,948,155,565 - Step 5: Solve for x
x = 8,276,057,948,155,565/79,488,575.70 - Step 6: Final answer
x = 104,116,319.55
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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.