Finding the Fourth Proportional to 6,418,495.64, 8,857,483.12 and 3,518,067.08
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Solution
The fourth proportional to 6,418,495.64, 8,857,483.12 and 3,518,067.08 is: 4,854,910.17
Step by Step Solution
- Step 1: Write the proportion equation
6,418,495.64 : 8,857,483.12 = 3,518,067.08 : x - Step 2: Convert to fraction form
6,418,495.64/8,857,483.12 = 3,518,067.08/x - Step 3: Cross multiply
6,418,495.64x = 8,857,483.12 × 3,518,067.08 - Step 4: Simplify right side
6,418,495.64x = 31,161,219,776,127.69 - Step 5: Solve for x
x = 31,161,219,776,127.69/6,418,495.64 - Step 6: Final answer
x = 4,854,910.17
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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.