Finding the Fourth Proportional to 291,276,109.30, 436,914,163.95 and 118,658,823.70
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Solution
The fourth proportional to 291,276,109.30, 436,914,163.95 and 118,658,823.70 is: 177,988,235.55
Step by Step Solution
- Step 1: Write the proportion equation
291,276,109.30 : 436,914,163.95 = 118,658,823.70 : x - Step 2: Convert to fraction form
291,276,109.30/436,914,163.95 = 118,658,823.70/x - Step 3: Cross multiply
291,276,109.30x = 436,914,163.95 × 118,658,823.70 - Step 4: Simplify right side
291,276,109.30x = 51,843,720,752,175,944 - Step 5: Solve for x
x = 51,843,720,752,175,944/291,276,109.30 - Step 6: Final answer
x = 177,988,235.55
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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.