Finding the Fourth Proportional to 130,405,280.70, 195,607,921.05 and 69,939,104.70
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Solution
The fourth proportional to 130,405,280.70, 195,607,921.05 and 69,939,104.70 is: 104,908,657.05
Step by Step Solution
- Step 1: Write the proportion equation
130,405,280.70 : 195,607,921.05 = 69,939,104.70 : x - Step 2: Convert to fraction form
130,405,280.70/195,607,921.05 = 69,939,104.70/x - Step 3: Cross multiply
130,405,280.70x = 195,607,921.05 × 69,939,104.70 - Step 4: Simplify right side
130,405,280.70x = 13,680,642,870,465,286 - Step 5: Solve for x
x = 13,680,642,870,465,286/130,405,280.70 - Step 6: Final answer
x = 104,908,657.05
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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.