Finding the Fourth Proportional to 10,930,987.70, 16,403,479.95 and 6,382,027.70
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Solution
The fourth proportional to 10,930,987.70, 16,403,479.95 and 6,382,027.70 is: 9,577,127.55
Step by Step Solution
- Step 1: Write the proportion equation
10,930,987.70 : 16,403,479.95 = 6,382,027.70 : x - Step 2: Convert to fraction form
10,930,987.70/16,403,479.95 = 6,382,027.70/x - Step 3: Cross multiply
10,930,987.70x = 16,403,479.95 × 6,382,027.70 - Step 4: Simplify right side
10,930,987.70x = 104,687,463,417,294.61 - Step 5: Solve for x
x = 104,687,463,417,294.61/10,930,987.70 - Step 6: Final answer
x = 9,577,127.55
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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.