Finding the Fourth Proportional to 330,943,449.62, 456,687,225.14 and 189,713,419.40
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Solution
The fourth proportional to 330,943,449.62, 456,687,225.14 and 189,713,419.40 is: 261,796,071.73
Step by Step Solution
- Step 1: Write the proportion equation
330,943,449.62 : 456,687,225.14 = 189,713,419.40 : x - Step 2: Convert to fraction form
330,943,449.62/456,687,225.14 = 189,713,419.40/x - Step 3: Cross multiply
330,943,449.62x = 456,687,225.14 × 189,713,419.40 - Step 4: Simplify right side
330,943,449.62x = 86,639,695,074,375,040 - Step 5: Solve for x
x = 86,639,695,074,375,040/330,943,449.62 - Step 6: Final answer
x = 261,796,071.73
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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.