Finding the Fourth Proportional to 300,860,173.81, 415,011,139.18 and 189,174,194.00
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Solution
The fourth proportional to 300,860,173.81, 415,011,139.18 and 189,174,194.00 is: 260,949,785.28
Step by Step Solution
- Step 1: Write the proportion equation
300,860,173.81 : 415,011,139.18 = 189,174,194.00 : x - Step 2: Convert to fraction form
300,860,173.81/415,011,139.18 = 189,174,194.00/x - Step 3: Cross multiply
300,860,173.81x = 415,011,139.18 × 189,174,194.00 - Step 4: Simplify right side
300,860,173.81x = 78,509,397,754,406,624 - Step 5: Solve for x
x = 78,509,397,754,406,624/300,860,173.81 - Step 6: Final answer
x = 260,949,785.28
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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.