Finding the Fourth Proportional to 86,867,908.60, 130,306,787.36 and 27,785,478.58
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Solution
The fourth proportional to 86,867,908.60, 130,306,787.36 and 27,785,478.58 is: 41,679,793.00
Step by Step Solution
- Step 1: Write the proportion equation
86,867,908.60 : 130,306,787.36 = 27,785,478.58 : x - Step 2: Convert to fraction form
86,867,908.60/130,306,787.36 = 27,785,478.58/x - Step 3: Cross multiply
86,867,908.60x = 130,306,787.36 × 27,785,478.58 - Step 4: Simplify right side
86,867,908.60x = 3,620,636,449,019,894.50 - Step 5: Solve for x
x = 3,620,636,449,019,894.50/86,867,908.60 - Step 6: Final answer
x = 41,679,793.00
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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.