Finding the Fourth Proportional to 435,620,171.70, 653,430,257.55 and 206,037,659.70
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Solution
The fourth proportional to 435,620,171.70, 653,430,257.55 and 206,037,659.70 is: 309,056,489.55
Step by Step Solution
- Step 1: Write the proportion equation
435,620,171.70 : 653,430,257.55 = 206,037,659.70 : x - Step 2: Convert to fraction form
435,620,171.70/653,430,257.55 = 206,037,659.70/x - Step 3: Cross multiply
435,620,171.70x = 653,430,257.55 × 206,037,659.70 - Step 4: Simplify right side
435,620,171.70x = 134,631,241,042,770,240 - Step 5: Solve for x
x = 134,631,241,042,770,240/435,620,171.70 - Step 6: Final answer
x = 309,056,489.55
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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.