Finding the Fourth Proportional to 7,156,211.60, 9,875,636.16 and 3,893,097.44
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Solution
The fourth proportional to 7,156,211.60, 9,875,636.16 and 3,893,097.44 is: 5,372,509.37
Step by Step Solution
- Step 1: Write the proportion equation
7,156,211.60 : 9,875,636.16 = 3,893,097.44 : x - Step 2: Convert to fraction form
7,156,211.60/9,875,636.16 = 3,893,097.44/x - Step 3: Cross multiply
7,156,211.60x = 9,875,636.16 × 3,893,097.44 - Step 4: Simplify right side
7,156,211.60x = 38,446,813,852,867.43 - Step 5: Solve for x
x = 38,446,813,852,867.43/7,156,211.60 - Step 6: Final answer
x = 5,372,509.37
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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.