Finding the Fourth Proportional to 199,771,822.18, 299,658,118.73 and 77,007,950.63
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Solution
The fourth proportional to 199,771,822.18, 299,658,118.73 and 77,007,950.63 is: 115,512,074.53
Step by Step Solution
- Step 1: Write the proportion equation
199,771,822.18 : 299,658,118.73 = 77,007,950.63 : x - Step 2: Convert to fraction form
199,771,822.18/299,658,118.73 = 77,007,950.63/x - Step 3: Cross multiply
199,771,822.18x = 299,658,118.73 × 77,007,950.63 - Step 4: Simplify right side
199,771,822.18x = 23,076,057,613,038,520 - Step 5: Solve for x
x = 23,076,057,613,038,520/199,771,822.18 - Step 6: Final answer
x = 115,512,074.53
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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.