Finding the Fourth Proportional to 989,754,993.09, 1,365,862,785.66 and 543,747,248.81
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Solution
The fourth proportional to 989,754,993.09, 1,365,862,785.66 and 543,747,248.81 is: 750,371,695.16
Step by Step Solution
- Step 1: Write the proportion equation
989,754,993.09 : 1,365,862,785.66 = 543,747,248.81 : x - Step 2: Convert to fraction form
989,754,993.09/1,365,862,785.66 = 543,747,248.81/x - Step 3: Cross multiply
989,754,993.09x = 1,365,862,785.66 × 543,747,248.81 - Step 4: Simplify right side
989,754,993.09x = 742,684,131,954,587,648 - Step 5: Solve for x
x = 742,684,131,954,587,648/989,754,993.09 - Step 6: Final answer
x = 750,371,695.16
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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.