Finding the Fourth Proportional to 87,149,482.20, 130,724,223.30 and 57,924,163.80
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Solution
The fourth proportional to 87,149,482.20, 130,724,223.30 and 57,924,163.80 is: 86,886,245.70
Step by Step Solution
- Step 1: Write the proportion equation
87,149,482.20 : 130,724,223.30 = 57,924,163.80 : x - Step 2: Convert to fraction form
87,149,482.20/130,724,223.30 = 57,924,163.80/x - Step 3: Cross multiply
87,149,482.20x = 130,724,223.30 × 57,924,163.80 - Step 4: Simplify right side
87,149,482.20x = 7,572,091,323,056,976 - Step 5: Solve for x
x = 7,572,091,323,056,976/87,149,482.20 - Step 6: Final answer
x = 86,886,245.70
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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.