Finding the Fourth Proportional to 188,440,432.58, 260,246,051.88 and 167,898,860.12
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Solution
The fourth proportional to 188,440,432.58, 260,246,051.88 and 167,898,860.12 is: 231,877,070.45
Step by Step Solution
- Step 1: Write the proportion equation
188,440,432.58 : 260,246,051.88 = 167,898,860.12 : x - Step 2: Convert to fraction form
188,440,432.58/260,246,051.88 = 167,898,860.12/x - Step 3: Cross multiply
188,440,432.58x = 260,246,051.88 × 167,898,860.12 - Step 4: Simplify right side
188,440,432.58x = 43,695,015,461,382,384 - Step 5: Solve for x
x = 43,695,015,461,382,384/188,440,432.58 - Step 6: Final answer
x = 231,877,070.45
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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.