Finding the Fourth Proportional to 395,070,553.41, 545,171,795.87 and 216,454,196.96
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Solution
The fourth proportional to 395,070,553.41, 545,171,795.87 and 216,454,196.96 is: 298,692,783.50
Step by Step Solution
- Step 1: Write the proportion equation
395,070,553.41 : 545,171,795.87 = 216,454,196.96 : x - Step 2: Convert to fraction form
395,070,553.41/545,171,795.87 = 216,454,196.96/x - Step 3: Cross multiply
395,070,553.41x = 545,171,795.87 × 216,454,196.96 - Step 4: Simplify right side
395,070,553.41x = 118,004,723,276,473,776 - Step 5: Solve for x
x = 118,004,723,276,473,776/395,070,553.41 - Step 6: Final answer
x = 298,692,783.50
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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.