Finding the Fourth Proportional to 872,345,612.44, 1,306,200,548.58 and 526,831,805.08
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Solution
The fourth proportional to 872,345,612.44, 1,306,200,548.58 and 526,831,805.08 is: 788,847,886.65
Step by Step Solution
- Step 1: Write the proportion equation
872,345,612.44 : 1,306,200,548.58 = 526,831,805.08 : x - Step 2: Convert to fraction form
872,345,612.44/1,306,200,548.58 = 526,831,805.08/x - Step 3: Cross multiply
872,345,612.44x = 1,306,200,548.58 × 526,831,805.08 - Step 4: Simplify right side
872,345,612.44x = 688,147,992,804,887,552 - Step 5: Solve for x
x = 688,147,992,804,887,552/872,345,612.44 - Step 6: Final answer
x = 788,847,886.65
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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.