Finding the Fourth Proportional to 356,823,106.64, 492,588,900.68 and 239,305,448.88
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Solution
The fourth proportional to 356,823,106.64, 492,588,900.68 and 239,305,448.88 is: 330,357,551.95
Step by Step Solution
- Step 1: Write the proportion equation
356,823,106.64 : 492,588,900.68 = 239,305,448.88 : x - Step 2: Convert to fraction form
356,823,106.64/492,588,900.68 = 239,305,448.88/x - Step 3: Cross multiply
356,823,106.64x = 492,588,900.68 × 239,305,448.88 - Step 4: Simplify right side
356,823,106.64x = 117,879,207,990,533,136 - Step 5: Solve for x
x = 117,879,207,990,533,136/356,823,106.64 - Step 6: Final answer
x = 330,357,551.95
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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.