Finding the Fourth Proportional to 86,197,924.85, 129,342,287.27 and 49,831,860.09
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Solution
The fourth proportional to 86,197,924.85, 129,342,287.27 and 49,831,860.09 is: 74,774,036.31
Step by Step Solution
- Step 1: Write the proportion equation
86,197,924.85 : 129,342,287.27 = 49,831,860.09 : x - Step 2: Convert to fraction form
86,197,924.85/129,342,287.27 = 49,831,860.09/x - Step 3: Cross multiply
86,197,924.85x = 129,342,287.27 × 49,831,860.09 - Step 4: Simplify right side
86,197,924.85x = 6,445,366,763,083,808 - Step 5: Solve for x
x = 6,445,366,763,083,808/86,197,924.85 - Step 6: Final answer
x = 74,774,036.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.