Finding the Fourth Proportional to 5,406,768.60, 8,110,152.90 and 5,217,811.80
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Solution
The fourth proportional to 5,406,768.60, 8,110,152.90 and 5,217,811.80 is: 7,826,717.70
Step by Step Solution
- Step 1: Write the proportion equation
5,406,768.60 : 8,110,152.90 = 5,217,811.80 : x - Step 2: Convert to fraction form
5,406,768.60/8,110,152.90 = 5,217,811.80/x - Step 3: Cross multiply
5,406,768.60x = 8,110,152.90 × 5,217,811.80 - Step 4: Simplify right side
5,406,768.60x = 42,317,251,501,424.22 - Step 5: Solve for x
x = 42,317,251,501,424.22/5,406,768.60 - Step 6: Final answer
x = 7,826,717.70
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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.