Finding the Fourth Proportional to 310,346,797.08, 428,297,696.37 and 171,117,128.28
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Solution
The fourth proportional to 310,346,797.08, 428,297,696.37 and 171,117,128.28 is: 236,152,177.31
Step by Step Solution
- Step 1: Write the proportion equation
310,346,797.08 : 428,297,696.37 = 171,117,128.28 : x - Step 2: Convert to fraction form
310,346,797.08/428,297,696.37 = 171,117,128.28/x - Step 3: Cross multiply
310,346,797.08x = 428,297,696.37 × 171,117,128.28 - Step 4: Simplify right side
310,346,797.08x = 73,289,071,851,773,776 - Step 5: Solve for x
x = 73,289,071,851,773,776/310,346,797.08 - Step 6: Final answer
x = 236,152,177.31
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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.