Finding the Fourth Proportional to 211,430,461.29, 291,776,026.41 and 118,612,961.43
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Solution
The fourth proportional to 211,430,461.29, 291,776,026.41 and 118,612,961.43 is: 163,687,003.07
Step by Step Solution
- Step 1: Write the proportion equation
211,430,461.29 : 291,776,026.41 = 118,612,961.43 : x - Step 2: Convert to fraction form
211,430,461.29/291,776,026.41 = 118,612,961.43/x - Step 3: Cross multiply
211,430,461.29x = 291,776,026.41 × 118,612,961.43 - Step 4: Simplify right side
211,430,461.29x = 34,608,418,566,767,996 - Step 5: Solve for x
x = 34,608,418,566,767,996/211,430,461.29 - Step 6: Final answer
x = 163,687,003.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.