Finding the Fourth Proportional to 665,014,028.24, 917,720,688.84 and 371,658,587.60
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Solution
The fourth proportional to 665,014,028.24, 917,720,688.84 and 371,658,587.60 is: 512,889,594.12
Step by Step Solution
- Step 1: Write the proportion equation
665,014,028.24 : 917,720,688.84 = 371,658,587.60 : x - Step 2: Convert to fraction form
665,014,028.24/917,720,688.84 = 371,658,587.60/x - Step 3: Cross multiply
665,014,028.24x = 917,720,688.84 × 371,658,587.60 - Step 4: Simplify right side
665,014,028.24x = 341,078,775,025,573,504 - Step 5: Solve for x
x = 341,078,775,025,573,504/665,014,028.24 - Step 6: Final answer
x = 512,889,594.12
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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.