Finding the Fourth Proportional to 665,416,415, 918,213,028.48 and 368,052,257.08
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Solution
The fourth proportional to 665,416,415, 918,213,028.48 and 368,052,257.08 is: 507,878,029.45
Step by Step Solution
- Step 1: Write the proportion equation
665,416,415 : 918,213,028.48 = 368,052,257.08 : x - Step 2: Convert to fraction form
665,416,415/918,213,028.48 = 368,052,257.08/x - Step 3: Cross multiply
665,416,415x = 918,213,028.48 × 368,052,257.08 - Step 4: Simplify right side
665,416,415x = 337,950,377,612,326,336 - Step 5: Solve for x
x = 337,950,377,612,326,336/665,416,415 - Step 6: Final answer
x = 507,878,029.45
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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.