Finding the Fourth Proportional to 115,243,842.98, 159,040,289.83 and 63,032,880.18
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Solution
The fourth proportional to 115,243,842.98, 159,040,289.83 and 63,032,880.18 is: 86,987,445.69
Step by Step Solution
- Step 1: Write the proportion equation
115,243,842.98 : 159,040,289.83 = 63,032,880.18 : x - Step 2: Convert to fraction form
115,243,842.98/159,040,289.83 = 63,032,880.18/x - Step 3: Cross multiply
115,243,842.98x = 159,040,289.83 × 63,032,880.18 - Step 4: Simplify right side
115,243,842.98x = 10,024,767,532,646,864 - Step 5: Solve for x
x = 10,024,767,532,646,864/115,243,842.98 - Step 6: Final answer
x = 86,987,445.69
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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.