Finding the Fourth Proportional to 5,190,071.08, 7,785,318.72 and 1,780,702.12
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Solution
The fourth proportional to 5,190,071.08, 7,785,318.72 and 1,780,702.12 is: 2,671,125.95
Step by Step Solution
- Step 1: Write the proportion equation
5,190,071.08 : 7,785,318.72 = 1,780,702.12 : x - Step 2: Convert to fraction form
5,190,071.08/7,785,318.72 = 1,780,702.12/x - Step 3: Cross multiply
5,190,071.08x = 7,785,318.72 × 1,780,702.12 - Step 4: Simplify right side
5,190,071.08x = 13,863,333,549,579.69 - Step 5: Solve for x
x = 13,863,333,549,579.69/5,190,071.08 - Step 6: Final answer
x = 2,671,125.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.