Finding the Fourth Proportional to 22,787,863.62, 31,447,249.41 and 12,333,878.09
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Solution
The fourth proportional to 22,787,863.62, 31,447,249.41 and 12,333,878.09 is: 17,020,750.48
Step by Step Solution
- Step 1: Write the proportion equation
22,787,863.62 : 31,447,249.41 = 12,333,878.09 : x - Step 2: Convert to fraction form
22,787,863.62/31,447,249.41 = 12,333,878.09/x - Step 3: Cross multiply
22,787,863.62x = 31,447,249.41 × 12,333,878.09 - Step 4: Simplify right side
22,787,863.62x = 387,866,540,495,707.38 - Step 5: Solve for x
x = 387,866,540,495,707.38/22,787,863.62 - Step 6: Final answer
x = 17,020,750.48
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1.5x scale
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.