Finding the Fourth Proportional to 15,926,887.57, 21,980,970.80 and 9,052,402.99
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Solution
The fourth proportional to 15,926,887.57, 21,980,970.80 and 9,052,402.99 is: 12,493,376.68
Step by Step Solution
- Step 1: Write the proportion equation
15,926,887.57 : 21,980,970.80 = 9,052,402.99 : x - Step 2: Convert to fraction form
15,926,887.57/21,980,970.80 = 9,052,402.99/x - Step 3: Cross multiply
15,926,887.57x = 21,980,970.80 × 9,052,402.99 - Step 4: Simplify right side
15,926,887.57x = 198,980,605,747,760.69 - Step 5: Solve for x
x = 198,980,605,747,760.69/15,926,887.57 - Step 6: Final answer
x = 12,493,376.68
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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.