Finding the Fourth Proportional to 28,995,331.98, 40,012,482 and 15,941,814.24
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Solution
The fourth proportional to 28,995,331.98, 40,012,482 and 15,941,814.24 is: 21,999,111.99
Step by Step Solution
- Step 1: Write the proportion equation
28,995,331.98 : 40,012,482 = 15,941,814.24 : x - Step 2: Convert to fraction form
28,995,331.98/40,012,482 = 15,941,814.24/x - Step 3: Cross multiply
28,995,331.98x = 40,012,482 × 15,941,814.24 - Step 4: Simplify right side
28,995,331.98x = 637,871,555,325,343.75 - Step 5: Solve for x
x = 637,871,555,325,343.75/28,995,331.98 - Step 6: Final answer
x = 21,999,111.99
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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.