Finding the Fourth Proportional to 812,740,318.06, 1,121,674,682.34 and 455,604,553.50
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Solution
The fourth proportional to 812,740,318.06, 1,121,674,682.34 and 455,604,553.50 is: 628,786,441.95
Step by Step Solution
- Step 1: Write the proportion equation
812,740,318.06 : 1,121,674,682.34 = 455,604,553.50 : x - Step 2: Convert to fraction form
812,740,318.06/1,121,674,682.34 = 455,604,553.50/x - Step 3: Cross multiply
812,740,318.06x = 1,121,674,682.34 × 455,604,553.50 - Step 4: Simplify right side
812,740,318.06x = 511,040,092,819,769,984 - Step 5: Solve for x
x = 511,040,092,819,769,984/812,740,318.06 - Step 6: Final answer
x = 628,786,441.95
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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.