Finding the Fourth Proportional to 7,864,963.84, 11,785,427.78 and 5,296,682.26
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Solution
The fourth proportional to 7,864,963.84, 11,785,427.78 and 5,296,682.26 is: 7,936,929.85
Step by Step Solution
- Step 1: Write the proportion equation
7,864,963.84 : 11,785,427.78 = 5,296,682.26 : x - Step 2: Convert to fraction form
7,864,963.84/11,785,427.78 = 5,296,682.26/x - Step 3: Cross multiply
7,864,963.84x = 11,785,427.78 × 5,296,682.26 - Step 4: Simplify right side
7,864,963.84x = 62,423,666,248,837.18 - Step 5: Solve for x
x = 62,423,666,248,837.18/7,864,963.84 - Step 6: Final answer
x = 7,936,929.85
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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.