Finding the Fourth Proportional to 87,893,863.20, 121,282,381.08 and 48,190,947
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Solution
The fourth proportional to 87,893,863.20, 121,282,381.08 and 48,190,947 is: 66,497,393.40
Step by Step Solution
- Step 1: Write the proportion equation
87,893,863.20 : 121,282,381.08 = 48,190,947 : x - Step 2: Convert to fraction form
87,893,863.20/121,282,381.08 = 48,190,947/x - Step 3: Cross multiply
87,893,863.20x = 121,282,381.08 × 48,190,947 - Step 4: Simplify right side
87,893,863.20x = 5,844,712,798,660,083 - Step 5: Solve for x
x = 5,844,712,798,660,083/87,893,863.20 - Step 6: Final answer
x = 66,497,393.40
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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.