Finding the Fourth Proportional to 9,778,841.20, 14,667,605.70 and 2,590,220.80
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Solution
The fourth proportional to 9,778,841.20, 14,667,605.70 and 2,590,220.80 is: 3,885,157.41
Step by Step Solution
- Step 1: Write the proportion equation
9,778,841.20 : 14,667,605.70 = 2,590,220.80 : x - Step 2: Convert to fraction form
9,778,841.20/14,667,605.70 = 2,590,220.80/x - Step 3: Cross multiply
9,778,841.20x = 14,667,605.70 × 2,590,220.80 - Step 4: Simplify right side
9,778,841.20x = 37,992,337,370,338.55 - Step 5: Solve for x
x = 37,992,337,370,338.55/9,778,841.20 - Step 6: Final answer
x = 3,885,157.41
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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.