Finding the Fourth Proportional to 79,488,064.80, 119,232,097.20 and 74,449,216.80
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Solution
The fourth proportional to 79,488,064.80, 119,232,097.20 and 74,449,216.80 is: 111,673,825.20
Step by Step Solution
- Step 1: Write the proportion equation
79,488,064.80 : 119,232,097.20 = 74,449,216.80 : x - Step 2: Convert to fraction form
79,488,064.80/119,232,097.20 = 74,449,216.80/x - Step 3: Cross multiply
79,488,064.80x = 119,232,097.20 × 74,449,216.80 - Step 4: Simplify right side
79,488,064.80x = 8,876,736,253,961,473 - Step 5: Solve for x
x = 8,876,736,253,961,473/79,488,064.80 - Step 6: Final answer
x = 111,673,825.20
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1.5x scale
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.