Finding the Fourth Proportional to 385,146,918.90, 577,795,027.95 and 193,670,694.90
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Solution
The fourth proportional to 385,146,918.90, 577,795,027.95 and 193,670,694.90 is: 290,543,579.82
Step by Step Solution
- Step 1: Write the proportion equation
385,146,918.90 : 577,795,027.95 = 193,670,694.90 : x - Step 2: Convert to fraction form
385,146,918.90/577,795,027.95 = 193,670,694.90/x - Step 3: Cross multiply
385,146,918.90x = 577,795,027.95 × 193,670,694.90 - Step 4: Simplify right side
385,146,918.90x = 111,901,964,572,841,440 - Step 5: Solve for x
x = 111,901,964,572,841,440/385,146,918.90 - Step 6: Final answer
x = 290,543,579.82
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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.