Finding the Fourth Proportional to 631,230,775.84, 871,125,373.24 and 352,772,291.44
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Solution
The fourth proportional to 631,230,775.84, 871,125,373.24 and 352,772,291.44 is: 486,840,797.08
Step by Step Solution
- Step 1: Write the proportion equation
631,230,775.84 : 871,125,373.24 = 352,772,291.44 : x - Step 2: Convert to fraction form
631,230,775.84/871,125,373.24 = 352,772,291.44/x - Step 3: Cross multiply
631,230,775.84x = 871,125,373.24 × 352,772,291.44 - Step 4: Simplify right side
631,230,775.84x = 307,308,894,049,400,064 - Step 5: Solve for x
x = 307,308,894,049,400,064/631,230,775.84 - Step 6: Final answer
x = 486,840,797.08
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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.