Finding the Fourth Proportional to 667,605,374.14, 921,350,569.78 and 370,343,457.12
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Solution
The fourth proportional to 667,605,374.14, 921,350,569.78 and 370,343,457.12 is: 511,104,566.33
Step by Step Solution
- Step 1: Write the proportion equation
667,605,374.14 : 921,350,569.78 = 370,343,457.12 : x - Step 2: Convert to fraction form
667,605,374.14/921,350,569.78 = 370,343,457.12/x - Step 3: Cross multiply
667,605,374.14x = 921,350,569.78 × 370,343,457.12 - Step 4: Simplify right side
667,605,374.14x = 341,216,155,231,806,976 - Step 5: Solve for x
x = 341,216,155,231,806,976/667,605,374.14 - Step 6: Final answer
x = 511,104,566.33
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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.