Finding the Fourth Proportional to 199,771,821.18, 299,658,117.23 and 77,007,949.63
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Solution
The fourth proportional to 199,771,821.18, 299,658,117.23 and 77,007,949.63 is: 115,512,073.03
Step by Step Solution
- Step 1: Write the proportion equation
199,771,821.18 : 299,658,117.23 = 77,007,949.63 : x - Step 2: Convert to fraction form
199,771,821.18/299,658,117.23 = 77,007,949.63/x - Step 3: Cross multiply
199,771,821.18x = 299,658,117.23 × 77,007,949.63 - Step 4: Simplify right side
199,771,821.18x = 23,076,057,197,023,068 - Step 5: Solve for x
x = 23,076,057,197,023,068/199,771,821.18 - Step 6: Final answer
x = 115,512,073.03
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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.