Finding the Fourth Proportional to 499,395,266.16, 689,149,902.60 and 276,363,528.72
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Solution
The fourth proportional to 499,395,266.16, 689,149,902.60 and 276,363,528.72 is: 381,373,056.18
Step by Step Solution
- Step 1: Write the proportion equation
499,395,266.16 : 689,149,902.60 = 276,363,528.72 : x - Step 2: Convert to fraction form
499,395,266.16/689,149,902.60 = 276,363,528.72/x - Step 3: Cross multiply
499,395,266.16x = 689,149,902.60 × 276,363,528.72 - Step 4: Simplify right side
499,395,266.16x = 190,455,898,899,580,320 - Step 5: Solve for x
x = 190,455,898,899,580,320/499,395,266.16 - Step 6: Final answer
x = 381,373,056.18
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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.