Finding the Fourth Proportional to 291,255,278.40, 436,882,917.60 and 176,966,740.80
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Solution
The fourth proportional to 291,255,278.40, 436,882,917.60 and 176,966,740.80 is: 265,450,111.20
Step by Step Solution
- Step 1: Write the proportion equation
291,255,278.40 : 436,882,917.60 = 176,966,740.80 : x - Step 2: Convert to fraction form
291,255,278.40/436,882,917.60 = 176,966,740.80/x - Step 3: Cross multiply
291,255,278.40x = 436,882,917.60 × 176,966,740.80 - Step 4: Simplify right side
291,255,278.40x = 77,313,746,038,866,960 - Step 5: Solve for x
x = 77,313,746,038,866,960/291,255,278.40 - Step 6: Final answer
x = 265,450,111.20
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1.5x scale
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.