Finding the Fourth Proportional to 193,625,775.80, 290,438,663.70 and 70,803,855.80
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Solution
The fourth proportional to 193,625,775.80, 290,438,663.70 and 70,803,855.80 is: 106,205,783.70
Step by Step Solution
- Step 1: Write the proportion equation
193,625,775.80 : 290,438,663.70 = 70,803,855.80 : x - Step 2: Convert to fraction form
193,625,775.80/290,438,663.70 = 70,803,855.80/x - Step 3: Cross multiply
193,625,775.80x = 290,438,663.70 × 70,803,855.80 - Step 4: Simplify right side
193,625,775.80x = 20,564,177,263,359,492 - Step 5: Solve for x
x = 20,564,177,263,359,492/193,625,775.80 - Step 6: Final answer
x = 106,205,783.70
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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.