Finding the Fourth Proportional to 29,140,552.49, 40,213,754.21 and 15,909,728.99
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Solution
The fourth proportional to 29,140,552.49, 40,213,754.21 and 15,909,728.99 is: 21,955,312.32
Step by Step Solution
- Step 1: Write the proportion equation
29,140,552.49 : 40,213,754.21 = 15,909,728.99 : x - Step 2: Convert to fraction form
29,140,552.49/40,213,754.21 = 15,909,728.99/x - Step 3: Cross multiply
29,140,552.49x = 40,213,754.21 × 15,909,728.99 - Step 4: Simplify right side
29,140,552.49x = 639,789,930,870,954.12 - Step 5: Solve for x
x = 639,789,930,870,954.12/29,140,552.49 - Step 6: Final answer
x = 21,955,312.32
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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.