Finding the Fourth Proportional to 210,349,205.10, 316,959,595.97 and 172,850,728.14
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Solution
The fourth proportional to 210,349,205.10, 316,959,595.97 and 172,850,728.14 is: 260,455,925.79
Step by Step Solution
- Step 1: Write the proportion equation
210,349,205.10 : 316,959,595.97 = 172,850,728.14 : x - Step 2: Convert to fraction form
210,349,205.10/316,959,595.97 = 172,850,728.14/x - Step 3: Cross multiply
210,349,205.10x = 316,959,595.97 × 172,850,728.14 - Step 4: Simplify right side
210,349,205.10x = 54,786,696,953,510,448 - Step 5: Solve for x
x = 54,786,696,953,510,448/210,349,205.10 - Step 6: Final answer
x = 260,455,925.79
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.