Finding the Fourth Proportional to 214,563,354.13, 321,893,007.60 and 78,248,737.63
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Solution
The fourth proportional to 214,563,354.13, 321,893,007.60 and 78,248,737.63 is: 117,390,602.88
Step by Step Solution
- Step 1: Write the proportion equation
214,563,354.13 : 321,893,007.60 = 78,248,737.63 : x - Step 2: Convert to fraction form
214,563,354.13/321,893,007.60 = 78,248,737.63/x - Step 3: Cross multiply
214,563,354.13x = 321,893,007.60 × 78,248,737.63 - Step 4: Simplify right side
214,563,354.13x = 25,187,721,496,623,996 - Step 5: Solve for x
x = 25,187,721,496,623,996/214,563,354.13 - Step 6: Final answer
x = 117,390,602.88
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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.