Finding the Fourth Proportional to 257,272,974.50, 384,899,261.99 and 198,536,897.12
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Solution
The fourth proportional to 257,272,974.50, 384,899,261.99 and 198,536,897.12 is: 297,025,777.10
Step by Step Solution
- Step 1: Write the proportion equation
257,272,974.50 : 384,899,261.99 = 198,536,897.12 : x - Step 2: Convert to fraction form
257,272,974.50/384,899,261.99 = 198,536,897.12/x - Step 3: Cross multiply
257,272,974.50x = 384,899,261.99 × 198,536,897.12 - Step 4: Simplify right side
257,272,974.50x = 76,416,705,176,355,376 - Step 5: Solve for x
x = 76,416,705,176,355,376/257,272,974.50 - Step 6: Final answer
x = 297,025,777.10
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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.