Finding the Fourth Proportional to 117,984,421.20, 176,976,631.80 and 97,829,029.20
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Solution
The fourth proportional to 117,984,421.20, 176,976,631.80 and 97,829,029.20 is: 146,743,543.80
Step by Step Solution
- Step 1: Write the proportion equation
117,984,421.20 : 176,976,631.80 = 97,829,029.20 : x - Step 2: Convert to fraction form
117,984,421.20/176,976,631.80 = 97,829,029.20/x - Step 3: Cross multiply
117,984,421.20x = 176,976,631.80 × 97,829,029.20 - Step 4: Simplify right side
117,984,421.20x = 17,313,452,080,079,850 - Step 5: Solve for x
x = 17,313,452,080,079,850/117,984,421.20 - Step 6: Final answer
x = 146,743,543.80
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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.