Finding the Fourth Proportional to 11,367,970.80, 15,687,909.90 and 6,211,331.88
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Solution
The fourth proportional to 11,367,970.80, 15,687,909.90 and 6,211,331.88 is: 8,571,698.20
Step by Step Solution
- Step 1: Write the proportion equation
11,367,970.80 : 15,687,909.90 = 6,211,331.88 : x - Step 2: Convert to fraction form
11,367,970.80/15,687,909.90 = 6,211,331.88/x - Step 3: Cross multiply
11,367,970.80x = 15,687,909.90 × 6,211,331.88 - Step 4: Simplify right side
11,367,970.80x = 97,442,814,892,437.61 - Step 5: Solve for x
x = 97,442,814,892,437.61/11,367,970.80 - Step 6: Final answer
x = 8,571,698.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.