Finding the Fourth Proportional to 555,980,639.68, 767,251,177.22 and 305,089,229.23
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Solution
The fourth proportional to 555,980,639.68, 767,251,177.22 and 305,089,229.23 is: 421,021,980.95
Step by Step Solution
- Step 1: Write the proportion equation
555,980,639.68 : 767,251,177.22 = 305,089,229.23 : x - Step 2: Convert to fraction form
555,980,639.68/767,251,177.22 = 305,089,229.23/x - Step 3: Cross multiply
555,980,639.68x = 767,251,177.22 × 305,089,229.23 - Step 4: Simplify right side
555,980,639.68x = 234,080,070,286,725,120 - Step 5: Solve for x
x = 234,080,070,286,725,120/555,980,639.68 - Step 6: Final answer
x = 421,021,980.95
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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.