Finding the Fourth Proportional to 665,593,288.96, 918,511,928.52 and 368,237,659.28
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Solution
The fourth proportional to 665,593,288.96, 918,511,928.52 and 368,237,659.28 is: 508,164,202.06
Step by Step Solution
- Step 1: Write the proportion equation
665,593,288.96 : 918,511,928.52 = 368,237,659.28 : x - Step 2: Convert to fraction form
665,593,288.96/918,511,928.52 = 368,237,659.28/x - Step 3: Cross multiply
665,593,288.96x = 918,511,928.52 × 368,237,659.28 - Step 4: Simplify right side
665,593,288.96x = 338,230,682,578,963,456 - Step 5: Solve for x
x = 338,230,682,578,963,456/665,593,288.96 - Step 6: Final answer
x = 508,164,202.06
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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.