Finding the Fourth Proportional to 83,984,177.80, 125,976,266.70 and 20,158,769.80
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Solution
The fourth proportional to 83,984,177.80, 125,976,266.70 and 20,158,769.80 is: 30,238,154.70
Step by Step Solution
- Step 1: Write the proportion equation
83,984,177.80 : 125,976,266.70 = 20,158,769.80 : x - Step 2: Convert to fraction form
83,984,177.80/125,976,266.70 = 20,158,769.80/x - Step 3: Cross multiply
83,984,177.80x = 125,976,266.70 × 20,158,769.80 - Step 4: Simplify right side
83,984,177.80x = 2,539,526,560,668,706 - Step 5: Solve for x
x = 2,539,526,560,668,706/83,984,177.80 - Step 6: Final answer
x = 30,238,154.70
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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.