Finding the Fourth Proportional to 15,999,804.14, 22,075,354.59 and 9,121,776.62
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Solution
The fourth proportional to 15,999,804.14, 22,075,354.59 and 9,121,776.62 is: 12,585,557.40
Step by Step Solution
- Step 1: Write the proportion equation
15,999,804.14 : 22,075,354.59 = 9,121,776.62 : x - Step 2: Convert to fraction form
15,999,804.14/22,075,354.59 = 9,121,776.62/x - Step 3: Cross multiply
15,999,804.14x = 22,075,354.59 × 9,121,776.62 - Step 4: Simplify right side
15,999,804.14x = 201,366,453,377,271.66 - Step 5: Solve for x
x = 201,366,453,377,271.66/15,999,804.14 - Step 6: Final answer
x = 12,585,557.40
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1.5x scale
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.