Finding the Fourth Proportional to 239,754,621.63, 330,860,161.44 and 129,746,334.63
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Solution
The fourth proportional to 239,754,621.63, 330,860,161.44 and 129,746,334.63 is: 179,049,283.51
Step by Step Solution
- Step 1: Write the proportion equation
239,754,621.63 : 330,860,161.44 = 129,746,334.63 : x - Step 2: Convert to fraction form
239,754,621.63/330,860,161.44 = 129,746,334.63/x - Step 3: Cross multiply
239,754,621.63x = 330,860,161.44 × 129,746,334.63 - Step 4: Simplify right side
239,754,621.63x = 42,927,893,221,930,064 - Step 5: Solve for x
x = 42,927,893,221,930,064/239,754,621.63 - Step 6: Final answer
x = 179,049,283.51
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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.