Finding the Fourth Proportional to 310,764,196.71, 428,854,634.15 and 171,534,987.99
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Solution
The fourth proportional to 310,764,196.71, 428,854,634.15 and 171,534,987.99 is: 236,718,306.99
Step by Step Solution
- Step 1: Write the proportion equation
310,764,196.71 : 428,854,634.15 = 171,534,987.99 : x - Step 2: Convert to fraction form
310,764,196.71/428,854,634.15 = 171,534,987.99/x - Step 3: Cross multiply
310,764,196.71x = 428,854,634.15 × 171,534,987.99 - Step 4: Simplify right side
310,764,196.71x = 73,563,574,517,518,416 - Step 5: Solve for x
x = 73,563,574,517,518,416/310,764,196.71 - Step 6: Final answer
x = 236,718,306.99
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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.