Finding the Fourth Proportional to 209,113,747.80, 313,670,621.70 and 122,893,459.80
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Solution
The fourth proportional to 209,113,747.80, 313,670,621.70 and 122,893,459.80 is: 184,340,189.70
Step by Step Solution
- Step 1: Write the proportion equation
209,113,747.80 : 313,670,621.70 = 122,893,459.80 : x - Step 2: Convert to fraction form
209,113,747.80/313,670,621.70 = 122,893,459.80/x - Step 3: Cross multiply
209,113,747.80x = 313,670,621.70 × 122,893,459.80 - Step 4: Simplify right side
209,113,747.80x = 38,548,067,938,329,952 - Step 5: Solve for x
x = 38,548,067,938,329,952/209,113,747.80 - Step 6: Final answer
x = 184,340,189.70
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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.