Finding the Fourth Proportional to 239,232,538.50, 330,141,035.98 and 129,224,252.58
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Solution
The fourth proportional to 239,232,538.50, 330,141,035.98 and 129,224,252.58 is: 178,329,540.32
Step by Step Solution
- Step 1: Write the proportion equation
239,232,538.50 : 330,141,035.98 = 129,224,252.58 : x - Step 2: Convert to fraction form
239,232,538.50/330,141,035.98 = 129,224,252.58/x - Step 3: Cross multiply
239,232,538.50x = 330,141,035.98 × 129,224,252.58 - Step 4: Simplify right side
239,232,538.50x = 42,662,228,620,502,392 - Step 5: Solve for x
x = 42,662,228,620,502,392/239,232,538.50 - Step 6: Final answer
x = 178,329,540.32
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1.5x scale
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.