Finding the Fourth Proportional to 159,366,621.19, 219,923,701.68 and 88,805,205.43
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Solution
The fourth proportional to 159,366,621.19, 219,923,701.68 and 88,805,205.43 is: 122,549,937.75
Step by Step Solution
- Step 1: Write the proportion equation
159,366,621.19 : 219,923,701.68 = 88,805,205.43 : x - Step 2: Convert to fraction form
159,366,621.19/219,923,701.68 = 88,805,205.43/x - Step 3: Cross multiply
159,366,621.19x = 219,923,701.68 × 88,805,205.43 - Step 4: Simplify right side
159,366,621.19x = 19,530,369,506,618,440 - Step 5: Solve for x
x = 19,530,369,506,618,440/159,366,621.19 - Step 6: Final answer
x = 122,549,937.75
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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.