Finding the Fourth Proportional to 210,347,695.80, 315,521,543.70 and 97,101,487.80
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Solution
The fourth proportional to 210,347,695.80, 315,521,543.70 and 97,101,487.80 is: 145,652,231.70
Step by Step Solution
- Step 1: Write the proportion equation
210,347,695.80 : 315,521,543.70 = 97,101,487.80 : x - Step 2: Convert to fraction form
210,347,695.80/315,521,543.70 = 97,101,487.80/x - Step 3: Cross multiply
210,347,695.80x = 315,521,543.70 × 97,101,487.80 - Step 4: Simplify right side
210,347,695.80x = 30,637,611,326,222,716 - Step 5: Solve for x
x = 30,637,611,326,222,716/210,347,695.80 - Step 6: Final answer
x = 145,652,231.70
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1.5x scale
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.