Finding the Fourth Proportional to 21,283,058.90, 29,370,620.99 and 11,493,502.81
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Solution
The fourth proportional to 21,283,058.90, 29,370,620.99 and 11,493,502.81 is: 15,861,033.72
Step by Step Solution
- Step 1: Write the proportion equation
21,283,058.90 : 29,370,620.99 = 11,493,502.81 : x - Step 2: Convert to fraction form
21,283,058.90/29,370,620.99 = 11,493,502.81/x - Step 3: Cross multiply
21,283,058.90x = 29,370,620.99 × 11,493,502.81 - Step 4: Simplify right side
21,283,058.90x = 337,571,314,835,317.19 - Step 5: Solve for x
x = 337,571,314,835,317.19/21,283,058.90 - Step 6: Final answer
x = 15,861,033.72
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.