Finding the Fourth Proportional to 90,666,612.36, 135,986,631.99 and 44,596,115.07
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Solution
The fourth proportional to 90,666,612.36, 135,986,631.99 and 44,596,115.07 is: 66,887,637.36
Step by Step Solution
- Step 1: Write the proportion equation
90,666,612.36 : 135,986,631.99 = 44,596,115.07 : x - Step 2: Convert to fraction form
90,666,612.36/135,986,631.99 = 44,596,115.07/x - Step 3: Cross multiply
90,666,612.36x = 135,986,631.99 × 44,596,115.07 - Step 4: Simplify right side
90,666,612.36x = 6,064,475,488,207,784 - Step 5: Solve for x
x = 6,064,475,488,207,784/90,666,612.36 - Step 6: Final answer
x = 66,887,637.36
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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.