Finding the Fourth Proportional to 4,191,990,762.07, 6,287,319,775.09 and 1,393,726,558.42
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Solution
The fourth proportional to 4,191,990,762.07, 6,287,319,775.09 and 1,393,726,558.42 is: 2,090,368,287.81
Step by Step Solution
- Step 1: Write the proportion equation
4,191,990,762.07 : 6,287,319,775.09 = 1,393,726,558.42 : x - Step 2: Convert to fraction form
4,191,990,762.07/6,287,319,775.09 = 1,393,726,558.42/x - Step 3: Cross multiply
4,191,990,762.07x = 6,287,319,775.09 × 1,393,726,558.42 - Step 4: Simplify right side
4,191,990,762.07x = 8,762,804,551,831,411,712 - Step 5: Solve for x
x = 8,762,804,551,831,411,712/4,191,990,762.07 - Step 6: Final answer
x = 2,090,368,287.81
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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.