Finding the Fourth Proportional to 98,584,684.78, 135,334,454.80 and 84,621,799.07
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Solution
The fourth proportional to 98,584,684.78, 135,334,454.80 and 84,621,799.07 is: 116,166,573.62
Step by Step Solution
- Step 1: Write the proportion equation
98,584,684.78 : 135,334,454.80 = 84,621,799.07 : x - Step 2: Convert to fraction form
98,584,684.78/135,334,454.80 = 84,621,799.07/x - Step 3: Cross multiply
98,584,684.78x = 135,334,454.80 × 84,621,799.07 - Step 4: Simplify right side
98,584,684.78x = 11,452,245,041,333,598 - Step 5: Solve for x
x = 11,452,245,041,333,598/98,584,684.78 - Step 6: Final answer
x = 116,166,573.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.