Finding the Fourth Proportional to 19,011,209.20, 28,523,812.20 and 6,232,130.80
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Solution
The fourth proportional to 19,011,209.20, 28,523,812.20 and 6,232,130.80 is: 9,350,490.37
Step by Step Solution
- Step 1: Write the proportion equation
19,011,209.20 : 28,523,812.20 = 6,232,130.80 : x - Step 2: Convert to fraction form
19,011,209.20/28,523,812.20 = 6,232,130.80/x - Step 3: Cross multiply
19,011,209.20x = 28,523,812.20 × 6,232,130.80 - Step 4: Simplify right side
19,011,209.20x = 177,764,128,545,035.75 - Step 5: Solve for x
x = 177,764,128,545,035.75/19,011,209.20 - Step 6: Final answer
x = 9,350,490.37
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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.