Finding the Fourth Proportional to 160,551,581.88, 221,567,261.70 and 89,988,484.68
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Solution
The fourth proportional to 160,551,581.88, 221,567,261.70 and 89,988,484.68 is: 124,187,515.95
Step by Step Solution
- Step 1: Write the proportion equation
160,551,581.88 : 221,567,261.70 = 89,988,484.68 : x - Step 2: Convert to fraction form
160,551,581.88/221,567,261.70 = 89,988,484.68/x - Step 3: Cross multiply
160,551,581.88x = 221,567,261.70 × 89,988,484.68 - Step 4: Simplify right side
160,551,581.88x = 19,938,502,135,080,000 - Step 5: Solve for x
x = 19,938,502,135,080,000/160,551,581.88 - Step 6: Final answer
x = 124,187,515.95
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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.