Finding the Fourth Proportional to 19,389,751.98, 26,757,851.21 and 10,688,069.91
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Solution
The fourth proportional to 19,389,751.98, 26,757,851.21 and 10,688,069.91 is: 14,749,532.88
Step by Step Solution
- Step 1: Write the proportion equation
19,389,751.98 : 26,757,851.21 = 10,688,069.91 : x - Step 2: Convert to fraction form
19,389,751.98/26,757,851.21 = 10,688,069.91/x - Step 3: Cross multiply
19,389,751.98x = 26,757,851.21 × 10,688,069.91 - Step 4: Simplify right side
19,389,751.98x = 285,989,784,373,858.12 - Step 5: Solve for x
x = 285,989,784,373,858.12/19,389,751.98 - Step 6: Final answer
x = 14,749,532.88
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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.