Finding the Fourth Proportional to 193,147,848.40, 289,721,772.60 and 147,798,216.40
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Solution
The fourth proportional to 193,147,848.40, 289,721,772.60 and 147,798,216.40 is: 221,697,324.60
Step by Step Solution
- Step 1: Write the proportion equation
193,147,848.40 : 289,721,772.60 = 147,798,216.40 : x - Step 2: Convert to fraction form
193,147,848.40/289,721,772.60 = 147,798,216.40/x - Step 3: Cross multiply
193,147,848.40x = 289,721,772.60 × 147,798,216.40 - Step 4: Simplify right side
193,147,848.40x = 42,820,361,242,526,392 - Step 5: Solve for x
x = 42,820,361,242,526,392/193,147,848.40 - Step 6: Final answer
x = 221,697,324.60
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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.