Finding the Fourth Proportional to 15,454,228.10, 21,325,767.95 and 8,578,168.88
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Solution
The fourth proportional to 15,454,228.10, 21,325,767.95 and 8,578,168.88 is: 11,837,280.88
Step by Step Solution
- Step 1: Write the proportion equation
15,454,228.10 : 21,325,767.95 = 8,578,168.88 : x - Step 2: Convert to fraction form
15,454,228.10/21,325,767.95 = 8,578,168.88/x - Step 3: Cross multiply
15,454,228.10x = 21,325,767.95 × 8,578,168.88 - Step 4: Simplify right side
15,454,228.10x = 182,936,038,821,271.72 - Step 5: Solve for x
x = 182,936,038,821,271.72/15,454,228.10 - Step 6: Final answer
x = 11,837,280.88
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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.