Finding the Fourth Proportional to 7,390,396.20, 10,199,607.21 and 6,147,811.53
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Solution
The fourth proportional to 7,390,396.20, 10,199,607.21 and 6,147,811.53 is: 8,484,695.69
Step by Step Solution
- Step 1: Write the proportion equation
7,390,396.20 : 10,199,607.21 = 6,147,811.53 : x - Step 2: Convert to fraction form
7,390,396.20/10,199,607.21 = 6,147,811.53/x - Step 3: Cross multiply
7,390,396.20x = 10,199,607.21 × 6,147,811.53 - Step 4: Simplify right side
7,390,396.20x = 62,705,262,807,109.14 - Step 5: Solve for x
x = 62,705,262,807,109.14/7,390,396.20 - Step 6: Final answer
x = 8,484,695.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.