Finding the Fourth Proportional to 216,878,958.91, 299,293,317.89 and 117,759,898
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Solution
The fourth proportional to 216,878,958.91, 299,293,317.89 and 117,759,898 is: 162,508,851.78
Step by Step Solution
- Step 1: Write the proportion equation
216,878,958.91 : 299,293,317.89 = 117,759,898 : x - Step 2: Convert to fraction form
216,878,958.91/299,293,317.89 = 117,759,898/x - Step 3: Cross multiply
216,878,958.91x = 299,293,317.89 × 117,759,898 - Step 4: Simplify right side
216,878,958.91x = 35,244,750,586,807,972 - Step 5: Solve for x
x = 35,244,750,586,807,972/216,878,958.91 - Step 6: Final answer
x = 162,508,851.78
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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.