Finding the Fourth Proportional to 3,156,133.24, 4,355,376.74 and 1,779,465.16
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Solution
The fourth proportional to 3,156,133.24, 4,355,376.74 and 1,779,465.16 is: 2,455,612.80
Step by Step Solution
- Step 1: Write the proportion equation
3,156,133.24 : 4,355,376.74 = 1,779,465.16 : x - Step 2: Convert to fraction form
3,156,133.24/4,355,376.74 = 1,779,465.16/x - Step 3: Cross multiply
3,156,133.24x = 4,355,376.74 × 1,779,465.16 - Step 4: Simplify right side
3,156,133.24x = 7,750,241,167,504.38 - Step 5: Solve for x
x = 7,750,241,167,504.38/3,156,133.24 - Step 6: Final answer
x = 2,455,612.80
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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.