Finding the Fourth Proportional to 28,604,646.87, 42,902,373.42 and 7,850,235.84
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Solution
The fourth proportional to 28,604,646.87, 42,902,373.42 and 7,850,235.84 is: 11,774,092.19
Step by Step Solution
- Step 1: Write the proportion equation
28,604,646.87 : 42,902,373.42 = 7,850,235.84 : x - Step 2: Convert to fraction form
28,604,646.87/42,902,373.42 = 7,850,235.84/x - Step 3: Cross multiply
28,604,646.87x = 42,902,373.42 × 7,850,235.84 - Step 4: Simplify right side
28,604,646.87x = 336,793,749,442,747.38 - Step 5: Solve for x
x = 336,793,749,442,747.38/28,604,646.87 - Step 6: Final answer
x = 11,774,092.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.