Finding the Fourth Proportional to 492,276,826.73, 679,551,196.07 and 306,729,515.99
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Solution
The fourth proportional to 492,276,826.73, 679,551,196.07 and 306,729,515.99 is: 423,417,065.65
Step by Step Solution
- Step 1: Write the proportion equation
492,276,826.73 : 679,551,196.07 = 306,729,515.99 : x - Step 2: Convert to fraction form
492,276,826.73/679,551,196.07 = 306,729,515.99/x - Step 3: Cross multiply
492,276,826.73x = 679,551,196.07 × 306,729,515.99 - Step 4: Simplify right side
492,276,826.73x = 208,438,409,460,976,704 - Step 5: Solve for x
x = 208,438,409,460,976,704/492,276,826.73 - Step 6: Final answer
x = 423,417,065.65
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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.