Finding the Fourth Proportional to 911,881,749.76, 1,367,933,311.52 and 256,832,776.84
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Solution
The fourth proportional to 911,881,749.76, 1,367,933,311.52 and 256,832,776.84 is: 385,280,340.38
Step by Step Solution
- Step 1: Write the proportion equation
911,881,749.76 : 1,367,933,311.52 = 256,832,776.84 : x - Step 2: Convert to fraction form
911,881,749.76/1,367,933,311.52 = 256,832,776.84/x - Step 3: Cross multiply
911,881,749.76x = 1,367,933,311.52 × 256,832,776.84 - Step 4: Simplify right side
911,881,749.76x = 351,330,110,929,618,368 - Step 5: Solve for x
x = 351,330,110,929,618,368/911,881,749.76 - Step 6: Final answer
x = 385,280,340.38
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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.