Finding the Fourth Proportional to 71,280,679.08, 98,367,377.40 and 38,685,631.08
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Solution
The fourth proportional to 71,280,679.08, 98,367,377.40 and 38,685,631.08 is: 53,386,192.75
Step by Step Solution
- Step 1: Write the proportion equation
71,280,679.08 : 98,367,377.40 = 38,685,631.08 : x - Step 2: Convert to fraction form
71,280,679.08/98,367,377.40 = 38,685,631.08/x - Step 3: Cross multiply
71,280,679.08x = 98,367,377.40 × 38,685,631.08 - Step 4: Simplify right side
71,280,679.08x = 3,805,404,072,403,529.50 - Step 5: Solve for x
x = 3,805,404,072,403,529.50/71,280,679.08 - Step 6: Final answer
x = 53,386,192.75
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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.