Finding the Fourth Proportional to 79,182,003.70, 118,773,005.55 and 66,427,419.70
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Solution
The fourth proportional to 79,182,003.70, 118,773,005.55 and 66,427,419.70 is: 99,641,129.55
Step by Step Solution
- Step 1: Write the proportion equation
79,182,003.70 : 118,773,005.55 = 66,427,419.70 : x - Step 2: Convert to fraction form
79,182,003.70/118,773,005.55 = 66,427,419.70/x - Step 3: Cross multiply
79,182,003.70x = 118,773,005.55 × 66,427,419.70 - Step 4: Simplify right side
79,182,003.70x = 7,889,784,288,700,279 - Step 5: Solve for x
x = 7,889,784,288,700,279/79,182,003.70 - Step 6: Final answer
x = 99,641,129.55
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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.