Finding the Fourth Proportional to 239,310,061.99, 330,247,886.18 and 129,301,774.99
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Solution
The fourth proportional to 239,310,061.99, 330,247,886.18 and 129,301,774.99 is: 178,436,449.83
Step by Step Solution
- Step 1: Write the proportion equation
239,310,061.99 : 330,247,886.18 = 129,301,774.99 : x - Step 2: Convert to fraction form
239,310,061.99/330,247,886.18 = 129,301,774.99/x - Step 3: Cross multiply
239,310,061.99x = 330,247,886.18 × 129,301,774.99 - Step 4: Simplify right side
239,310,061.99x = 42,701,637,868,782,240 - Step 5: Solve for x
x = 42,701,637,868,782,240/239,310,061.99 - Step 6: Final answer
x = 178,436,449.83
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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.