Finding the Fourth Proportional to 118,937,174.10, 164,163,470.76 and 81,275,590.68
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Solution
The fourth proportional to 118,937,174.10, 164,163,470.76 and 81,275,590.68 is: 112,180,932.12
Step by Step Solution
- Step 1: Write the proportion equation
118,937,174.10 : 164,163,470.76 = 81,275,590.68 : x - Step 2: Convert to fraction form
118,937,174.10/164,163,470.76 = 81,275,590.68/x - Step 3: Cross multiply
118,937,174.10x = 164,163,470.76 × 81,275,590.68 - Step 4: Simplify right side
118,937,174.10x = 13,342,483,054,097,908 - Step 5: Solve for x
x = 13,342,483,054,097,908/118,937,174.10 - Step 6: Final answer
x = 112,180,932.12
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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.