Finding the Fourth Proportional to 688,299,090.70, 949,852,881.84 and 375,033,304.66
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Solution
The fourth proportional to 688,299,090.70, 949,852,881.84 and 375,033,304.66 is: 517,546,034.90
Step by Step Solution
- Step 1: Write the proportion equation
688,299,090.70 : 949,852,881.84 = 375,033,304.66 : x - Step 2: Convert to fraction form
688,299,090.70/949,852,881.84 = 375,033,304.66/x - Step 3: Cross multiply
688,299,090.70x = 949,852,881.84 × 375,033,304.66 - Step 4: Simplify right side
688,299,090.70x = 356,226,465,215,404,544 - Step 5: Solve for x
x = 356,226,465,215,404,544/688,299,090.70 - Step 6: Final answer
x = 517,546,034.90
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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.