Finding the Fourth Proportional to 69,721,107.81, 104,594,430.60 and 28,758,201.18
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Solution
The fourth proportional to 69,721,107.81, 104,594,430.60 and 28,758,201.18 is: 43,142,568.61
Step by Step Solution
- Step 1: Write the proportion equation
69,721,107.81 : 104,594,430.60 = 28,758,201.18 : x - Step 2: Convert to fraction form
69,721,107.81/104,594,430.60 = 28,758,201.18/x - Step 3: Cross multiply
69,721,107.81x = 104,594,430.60 × 28,758,201.18 - Step 4: Simplify right side
69,721,107.81x = 3,007,947,677,502,348 - Step 5: Solve for x
x = 3,007,947,677,502,348/69,721,107.81 - Step 6: Final answer
x = 43,142,568.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.