Finding the Fourth Proportional to 949,591,779.78, 1,310,444,351.64 and 526,212,514.02
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Solution
The fourth proportional to 949,591,779.78, 1,310,444,351.64 and 526,212,514.02 is: 726,177,533.80
Step by Step Solution
- Step 1: Write the proportion equation
949,591,779.78 : 1,310,444,351.64 = 526,212,514.02 : x - Step 2: Convert to fraction form
949,591,779.78/1,310,444,351.64 = 526,212,514.02/x - Step 3: Cross multiply
949,591,779.78x = 1,310,444,351.64 × 526,212,514.02 - Step 4: Simplify right side
949,591,779.78x = 689,572,216,759,793,280 - Step 5: Solve for x
x = 689,572,216,759,793,280/949,591,779.78 - Step 6: Final answer
x = 726,177,533.80
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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.