Finding the Fourth Proportional to 55,775,567.97, 76,972,152.93 and 30,996,799.20
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Solution
The fourth proportional to 55,775,567.97, 76,972,152.93 and 30,996,799.20 is: 42,776,621.65
Step by Step Solution
- Step 1: Write the proportion equation
55,775,567.97 : 76,972,152.93 = 30,996,799.20 : x - Step 2: Convert to fraction form
55,775,567.97/76,972,152.93 = 30,996,799.20/x - Step 3: Cross multiply
55,775,567.97x = 76,972,152.93 × 30,996,799.20 - Step 4: Simplify right side
55,775,567.97x = 2,385,890,368,362,902 - Step 5: Solve for x
x = 2,385,890,368,362,902/55,775,567.97 - Step 6: Final answer
x = 42,776,621.65
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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.