Finding the Fourth Proportional to 7,972,040.42, 11,001,764.14 and 4,487,603.84
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Solution
The fourth proportional to 7,972,040.42, 11,001,764.14 and 4,487,603.84 is: 6,193,089.40
Step by Step Solution
- Step 1: Write the proportion equation
7,972,040.42 : 11,001,764.14 = 4,487,603.84 : x - Step 2: Convert to fraction form
7,972,040.42/11,001,764.14 = 4,487,603.84/x - Step 3: Cross multiply
7,972,040.42x = 11,001,764.14 × 4,487,603.84 - Step 4: Simplify right side
7,972,040.42x = 49,371,559,001,438.30 - Step 5: Solve for x
x = 49,371,559,001,438.30/7,972,040.42 - Step 6: Final answer
x = 6,193,089.40
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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.