Finding the Fourth Proportional to 747,478,897.47, 1,121,203,913.14 and 223,203,232.55
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Solution
The fourth proportional to 747,478,897.47, 1,121,203,913.14 and 223,203,232.55 is: 334,800,538.99
Step by Step Solution
- Step 1: Write the proportion equation
747,478,897.47 : 1,121,203,913.14 = 223,203,232.55 : x - Step 2: Convert to fraction form
747,478,897.47/1,121,203,913.14 = 223,203,232.55/x - Step 3: Cross multiply
747,478,897.47x = 1,121,203,913.14 × 223,203,232.55 - Step 4: Simplify right side
747,478,897.47x = 250,256,337,754,393,376 - Step 5: Solve for x
x = 250,256,337,754,393,376/747,478,897.47 - Step 6: Final answer
x = 334,800,538.99
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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.