Finding the Fourth Proportional to 563,208,992.80, 777,214,537.68 and 312,311,998.24
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Solution
The fourth proportional to 563,208,992.80, 777,214,537.68 and 312,311,998.24 is: 430,982,865.02
Step by Step Solution
- Step 1: Write the proportion equation
563,208,992.80 : 777,214,537.68 = 312,311,998.24 : x - Step 2: Convert to fraction form
563,208,992.80/777,214,537.68 = 312,311,998.24/x - Step 3: Cross multiply
563,208,992.80x = 777,214,537.68 × 312,311,998.24 - Step 4: Simplify right side
563,208,992.80x = 242,733,425,324,018,560 - Step 5: Solve for x
x = 242,733,425,324,018,560/563,208,992.80 - Step 6: Final answer
x = 430,982,865.02
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1.5x scale
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.