Finding the Fourth Proportional to 201,014,962.70, 280,846,991.50 and 201,014,962.70
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Solution
The fourth proportional to 201,014,962.70, 280,846,991.50 and 201,014,962.70 is: 280,846,991.50
Step by Step Solution
- Step 1: Write the proportion equation
201,014,962.70 : 280,846,991.50 = 201,014,962.70 : x - Step 2: Convert to fraction form
201,014,962.70/280,846,991.50 = 201,014,962.70/x - Step 3: Cross multiply
201,014,962.70x = 280,846,991.50 × 201,014,962.70 - Step 4: Simplify right side
201,014,962.70x = 56,454,447,520,779,712 - Step 5: Solve for x
x = 56,454,447,520,779,712/201,014,962.70 - Step 6: Final answer
x = 280,846,991.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.